Patent US2801583A successfully refreshed from Google Patents.
US2801583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated hand numbering machine
Assignee: ROBERTS NUMBERING MACHINE Co
•
Filing: 1954-12-02
•
Granted: 1957-08-06
•
Expires: 1974-12-02
Abstract
No abstract record available.
Inventors
- 👤 David E Loushay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:09
CPC Classifications
B; B41; B41K; B41K1/00; B41K1/08; B41K1/14; B41K1/16; B41K1/36; B41K1/38; B41K1/40; B41K1/42; B41K1/56
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE497330C
Cited
US2538740A
Cited
US676083A
Cited
US1648276A
Cited
US1930539A
Cited
US2470622A
Cited
GB611871A
Cited
US2559455A
Cited
US2654312A
Cited
US2597185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |