US2659168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular gate
Assignee: Individual
•
Filing: 1951-02-16
•
Granted: 1953-11-17
•
Expires: 1971-02-16
Abstract
No abstract record available.
Inventors
- 👤 Kaplan Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:38
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US113998A
Cited
US895462A
Cited
US987574A
Cited
US1101541A
Cited
US1647406A
Cited
US1656127A
Cited
AU2320329A
Cited
US1847822A
Cited
US2182548A
Cited
US2529008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |