US2691190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making reversible sponge cushions
Assignee: Uniroyal Inc
•
Filing: 1951-04-02
•
Granted: 1954-10-12
•
Expires: 1971-04-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Bethe
- 👤 Fred H Dutoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:17
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C44/583; B29C33/00; B29C33/0033; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1277179A
Cited
US2025712A
Cited
US2083484A
Cited
US2234927A
Cited
US2315391A
Cited
US2358962A
Cited
US2295363A
Cited
US2364036A
Cited
US2371788A
Cited
US2560783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |