US2844995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-positioning lens rims and connecting support fittings therefor
Assignee: Individual
•
Filing: 1952-02-12
•
Granted: 1958-07-29
•
Expires: 1972-02-12
Abstract
No abstract record available.
Inventors
- 👤 Austin B Belgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:07
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1227620A
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US1509723A
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US1557322A
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FR610567A
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US1925960A
Cited
US1996683A
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US1964828A
Cited
US2089237A
Cited
US2269037A
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GB562159A
Cited
US2501259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |