Floating modular stair system
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Mar 18, 2025
Grant Date -
Nov 3, 2022
app pub date -
Oct 4, 2021
filing date -
Oct 4, 2021
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A floating modular stair system includes a wall mounting plate that is attachable to a vertical wall, and a base mounting plate that is anchorable to a horizontal floor. A monostringer beam is attachable to the wall mounting plate and to the base mounting plate. The monostringer beam includes an integrated hook attachment for variable angle adjustment and attachment to the wall mounting plate. Stair tread brackets are attachable to the monostringer beam for equal spacing of stair treads after installation of the monostringer beam to the wall mounting plate and to the base mounting plate. Each of the stair tread brackets are also designed for individual variable angle adjustment and leveling after attachment to the monostringer beam, and the stair tread brackets are rotatable through an adjustable anchor point about a fixed pivot anchor point to level the stair treads of the floating modular stair system.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- PRIMESOURCE BUILDING PRODUCTS, INC.
International Classification(s)

- 2021 Application Filing Year
- E04B Class
- 939 Applications Filed
- 480 Patents Issued To-Date
- 51.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lee, Aleksi Wen Hai | Liberty Lake, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Mosback, Michael Miles | Liberty Lake, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Williams, Nathan Adam | Spokane, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- E04B Class
- 0 % this patent is cited more than
- < 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Sep 18, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 18, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 18, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Mar 03, 2025 | PD | Priority Date | |
Sep 24, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Apr 06, 2021 | P | Publication | |
Mar 17, 2021 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 05, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Mar 04, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT RECEIVED |
Jun 18, 2020 | P | Published | |
Dec 13, 2018 | F | Filing | |
Dec 13, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PEREIRA, VITOR;MUKHERJI, ARUP;REEL/FRAME:047768/0776 Owner name: SILICON LABORATORIES INC., TEXAS Effective Date: Dec 13, 2018 |
Dec 13, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |

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