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US2999426A
Expired / Lapsed
US
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Lens supporting and positioning means
Assignee: Individual
•
Filing: 1958-07-22
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Granted: 1961-09-12
•
Expires: 1978-07-22
Abstract
No abstract record available.
Inventors
- 👤 Hanke Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:17
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US104216A
Cited
US1118719A
Cited
US1289998A
Cited
US1376234A
Cited
CH91244A
Cited
US2023523A
Cited
US2449694A
Cited
US2625855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |