US2960282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon seal or the like having load bearing element and method of producing the same
Assignee: Winzen Res Inc
•
Filing: 1956-04-30
•
Granted: 1960-11-15
•
Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Otto C Winzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:54
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; B29; B29L; B29L2022/00; B29L2022/02; B29L2022/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1563571A
Cited
US2067405A
Cited
US2318674A
Cited
US2679224A
Cited
US2598696A
Cited
US2767941A
Cited
US2858090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |