US2807085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container opening device
Assignee: Individual
•
Filing: 1955-03-07
•
Granted: 1957-09-24
•
Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 William H B Combs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/005; B; B67; B67B; B67B7/00; B67B7/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US292777A
Cited
US319860A
Cited
US337517A
Cited
US1533650A
Cited
US1385945A
Cited
US1425778A
Cited
US1996550A
Cited
US2544479A
Cited
US2546257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |