US2914986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic mounting
Assignee: SPECTRALUM CORP
•
Filing: 1959-02-27
•
Granted: 1959-12-01
•
Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Paul P Zakin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:24
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/06; G02C1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2548556A
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US2498065A
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US2579148A
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US2641031A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |