US2582729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined address and file card
Assignee: Individual
•
Filing: 1946-03-27
•
Granted: 1952-01-15
•
Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Wassell Frank Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:31
CPC Classifications
B; B42; B42F; B42F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US961928A
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US1000501A
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US1122874A
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US1208269A
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US1170434A
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US1250568A
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US1367550A
Cited
US1939089A
Cited
US1945927A
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US2209586A
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US2336572A
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US2381170A
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US2398982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |