US2954032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1953-02-02
•
Granted: 1960-09-27
•
Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Sr Ernest A Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:12
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/02; G; G06; G06K; G06K21/00; G06K21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US859272A
Cited
US1721240A
Cited
US1966742A
Cited
DE697616C
Cited
US2494528A
Cited
US2574870A
Cited
US2656091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |