US2649289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete gun
Assignee: RICHARD ROOSEVELT COLBURN
•
Filing: 1952-01-17
•
Granted: 1953-08-18
•
Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Giberson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:37
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/1223; B28C5/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US401063A
Cited
US1069507A
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US1096785A
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US1177200A
Cited
US2161553A
Cited
US2299565A
Cited
US2417700A
Cited
US2413293A
Cited
US2565546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |