Patent US2812939A successfully refreshed from Google Patents.
US2812939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for feeding blanks from a supply stack
Assignee: Bostitch Inc
•
Filing: 1953-05-14
•
Granted: 1957-11-12
•
Expires: 1973-05-14
Abstract
No abstract record available.
Inventors
- 👤 George H Harred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:26
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/12; B65B43/14; B65B43/20; B65B43/205; B65H; B65H3/00; B65H3/24; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/423; B65H2301/4232; B65H2301/42322
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1169925A
Cited
US1434608A
Cited
US1684389A
Cited
US1643646A
Cited
US1644695A
Cited
US1756073A
Cited
US2456449A
Cited
US2540162A
Cited
US2534893A
Cited
US2677543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |