US2569798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge feeding device
Assignee: International Business Machines Corp
•
Filing: 1942-07-07
•
Granted: 1951-10-02
•
Expires: 1962-07-07
Abstract
No abstract record available.
Inventors
- 👤 Fred M Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US357170A
Cited
US889243A
Cited
AT79716B
Cited
US1413694A
Cited
US1504714A
Cited
US1462169A
Cited
FR690426A
Cited
US1842446A
Cited
US1869618A
Cited
US1907342A
Cited
US2130722A
Cited
DE638858C
Cited
FR813999A
Cited
FR48651E
Cited
GB487371A
Cited
US2382715A
Cited
GB536873A
Cited
US2415413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |