US2918868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge
Assignee: Individual
•
Filing: 1956-04-17
•
Granted: 1959-12-29
•
Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 Ringdal Lars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
F; F42; F42B; F42B8/00; F42B8/02; F42B8/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE74314C
Cited
US97615A
Cited
US352125A
Cited
US392922A
Cited
US1233071A
Cited
GB394037A
Cited
CH238162A
Cited
US2686936A
Cited
BE522888A
Cited
GB732633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |