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US2521749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Postage metek loading mechanism
Assignee: —
•
Filing: —
•
Granted: 1950-09-12
•
Expires: 1967-09-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:45
CPC Classifications
G; G07; G07B; G07B17/00; G07B17/00185; G07B17/00193; G07B17/00016; G07B17/0008; G07B17/00362; G07B17/00459; G07B17/00508; G07B17/00733; G07B2017/00153; G07B17/00314; G07B2017/00322; G07B2017/00427; G07B2017/00516; G07B2017/00959; G07B2017/00967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1454108A
Cited
US1954694A
Cited
US1984141A
Cited
US2052485A
Cited
US2104624A
Cited
US888781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |