US2476827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of molding rubber sponges
Assignee: Bridgestone Firestone Inc
•
Filing: 1946-08-16
•
Granted: 1949-07-19
•
Expires: 1966-08-16
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Wohler
- 👤 Harold W Greenup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:49
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/35; B29C44/354; B29K; B29K2105/00; B29K2105/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2308971A
Cited
US1484731A
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US1564050A
Cited
US1862740A
Cited
US2051849A
Cited
US2227809A
Cited
US2394327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |