Screw machine having a plurality of symmetrically arranged rotors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 1988
Grant Date -
N/A
app pub date -
Mar 20, 1987
filing date -
Jul 22, 1985
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
The screw machine comprises consecutively mounted screw mechanisms (6, 7 and 8, 9) incorporating coaxially arranged stators (10, 12 and 14, 16) and rotors (11, 13 and 15, 17) disposed therein whose axes are offset with respect to the central axis of the stators (10, 12 and 14, 16) by the amount of eccentricity 'e' of the screw mechanisms (6, 7 and 8, 9). The screw mechanisms (6, 7 and 8, 9) are grouped into modules (4, and 5) and the modules proper are grouped into blocks (3). The axes of the rotors (11, 13, 15, 17) of the screw mechanisms (6, 7 and 8, 9) in the module (4 and 5) and the modules (4, and 5) proper in the block (3) are arranged symmetrically relative to the central axis.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT BUROVOI TEKHNIKI | MOSCOW 117957 |
International Classification(s)

- 1987 Application Filing Year
- F03C Class
- 14 Applications Filed
- 0 Patents Issued To-Date
- 0 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Baldenko, Dmitry F | Moscow, SU | 8 | 97 |
# of filed Patents : 8 Total Citations : 97 | |||
Gusman, Moisei T | Moscow, SU | 6 | 67 |
# of filed Patents : 6 Total Citations : 67 | |||
Khabetskaya, Valentina A | Moscow, SU | 1 | 15 |
# of filed Patents : 1 Total Citations : 15 | |||
Semenets, Valery I | Moscow, SU | 7 | 94 |
# of filed Patents : 7 Total Citations : 94 | |||
Vadetsky, Jury V | Moscow, SU | 5 | 67 |
# of filed Patents : 5 Total Citations : 67 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 15 Citation Count
- F03C Class
- 0 % this patent is cited more than
- 37 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Jan 27, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 22, 1995 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Nov 22, 1995 |
Nov 19, 1995 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jun 27, 1995 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 06, 1991 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 19, 1991 | I | Issuance | |
Jul 19, 1990 | F | Filing | |
Jun 20, 1990 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MATSUOKA, TOSHIO;HIGASHIDA, AKIO;SATAKE, TOKUKI;REEL/FRAME:005389/0680 Owner name: MITSUBISHI JUKOGYO KABUSHIKI KAISHA, 5-1, MARUNOUC Effective Date: Jun 20, 1990 |
Jul 31, 1989 | PD | Priority Date |

Matter Detail

Renewals Detail
