Patent US2880183A successfully refreshed from Google Patents.
US2880183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion-resistant foam rubber and method of making same
Assignee: Bridgestone Firestone Inc
•
Filing: 1958-08-28
•
Granted: 1959-03-31
•
Expires: 1978-08-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Weissert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398; B; B68; B68G; B68G1/00; B68G11/00; C08J; C08J9/00; C08J9/0061; C08J9/36; C08J9/40; C08J9/42; C08K3/00; C08K3/32; C08L; C08L11/00; C08J2311/00; C08J2461/00; C08L61/00; C08L61/04; C08L61/20; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN COMBINATION, A VULCANIZED CHLOROPRENE POLYMER FOAM RUBBER AND AT LEAST ABOUT 10 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT CHLOROPRENE POLYMER OF A MELAMINEALDEHYDE CONDENSATION PRODUCT, SAID FOAM RUBBER CONTAINING SAID CONDENSATION PRODUCT WHEREBY SAID FOAM RUBBER HAS IMPROVED RESISTANCE TO COMBUSTION.
Claim 2
Dependent Claim
44 words
IN COMBINATION, A VULCANIZED CHLOROPRENE POLYMER FOAM RUBBER AND AT LEAST ABOUT 10 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT CHLOROPRENE POLYMER OF A MELAMINEALDEHYDE CONDENSATION PRODUCT, SAID FOAM RUBBER CONTAINING SAID CONDENSATION PRODUCT WHEREBY SAID FOAM RUBBER HAS IMPROVED RESISTANCE TO COMBUSTION.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |