US2691191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making reversible sponge cushions
Assignee: Uniroyal Inc
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Filing: 1951-04-02
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Granted: 1954-10-12
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Expires: 1971-04-02
Abstract
No abstract record available.
Inventors
- 👤 Paul V Butsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0092; B29C; B29C44/00; B29C44/34; B29C44/58; B29C44/583; B29C33/00; B29C33/0033; B29C33/02; B29C33/04; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |