US2811501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanized fluoroacrylate polymers
Assignee: 3M Co
•
Filing: 1953-12-21
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Granted: 1957-10-29
•
Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Paul J Stedry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:30
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A RUBBERY VULCANIZED POLYMER PRODUCT RESULTING FROM HEATING AT VULCANIZATION TEMPERATURE A MIXTURE COMPRISING A POLYFUNCTIONAL ALIPHATIC POLYAMINE CURING AGENT, A CARBON BLACK REINFORCING PIGMENT, AND A RUBBERY HOMOPOLYMER OF 3-PERFLUOROMETHOXY-1,1-DIHYDROPERFLUOROPROPYL ACRYLATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |