US2834045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing foam rubber slab material
Assignee: National Automotive Fibres Inc
•
Filing: 1956-03-05
•
Granted: 1958-05-13
•
Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:19
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1670911A
Cited
US1952311A
Cited
US2103003A
Cited
GB466629A
Cited
US2194364A
Cited
US2713699A
Cited
US2763897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |