US2792571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stapling appliances
Assignee: LINDSAY STEVEN CARSTAIRS
•
Filing: 1954-11-09
•
Granted: 1957-05-21
•
Expires: 1974-11-09
Abstract
No abstract record available.
Inventors
- 👤 Klopstock Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:09
CPC Classifications
B; B25; B25C; B25C5/00; B25C5/10; B25C5/13; B25C5/16; B25C5/1606; B25C5/1617; B25C5/1679; B25C5/1682
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US562518A
Cited
US2482993A
Cited
US2574875A
Cited
US2558403A
Cited
US2625682A
Cited
US2585940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |