US2489315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catapult
Assignee: Individual
•
Filing: 1945-12-05
•
Granted: 1949-11-29
•
Expires: 1965-12-05
Abstract
No abstract record available.
Inventors
- 👤 Charles L Paulus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/04; B64F1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR461233A
Cited
US1390508A
Cited
US2127531A
Cited
US1879765A
Cited
US1963081A
Cited
US1930473A
Cited
GB480692A
Cited
US2292374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |