Preparation of organic polymers using organometallic capped monomers to produce metal free polymers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 12, 1991
Issued Date -
N/A
app pub date -
Jul 25, 1990
filing date -
Feb 27, 1984
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
A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.
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 | |
---|---|---|
RAYCHEM LIMITED | ROLLS HOUSE ROLLS BUILDING FETTER LANE LONDON EC4 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Horner, Patrick J | Menlo Park, CA | 17 | 140 |
# of filed Patents : 17 Total Citations : 140 | |||
Towle, Ian D H | Gloucestershire, GB2 | 14 | 63 |
# of filed Patents : 14 Total Citations : 63 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- C08G Class
- 0 % this patent is cited more than
- 34 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 |
---|---|---|---|
Nov 13, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 12TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2553); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 12 |
Sep 22, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Nov 02, 2016 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Aug 27, 2013 | I | Issuance | |
Aug 07, 2013 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 11, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KOOIMA, ROGER;REEL/FRAME:030690/0143 Owner name: SCHORN, THOMAS, SOUTH DAKOTA Effective Date: May 11, 2012 |
Mar 17, 2011 | P | Published | |
Nov 17, 2010 | F | Filing | |
Feb 17, 2009 | PD | Priority Date |

Matter Detail

Renewals Detail
