US2492888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collimating optical sight
Assignee: Specialties Inc
•
Filing: 1946-11-26
•
Granted: 1949-12-27
•
Expires: 1966-11-26
Abstract
No abstract record available.
Inventors
- 👤 Azor D Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:38
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1783769A
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US2162698A
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FR837661A
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US2409648A
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US2322395A
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US2379894A
Cited
US2428870A
Cited
US2368959A
Cited
US2434109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |