Patent US2528080A successfully refreshed from Google Patents.
US2528080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable telescope mount
Assignee: Individual
•
Filing: 1947-10-03
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Granted: 1950-10-31
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 James C Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:54
CPC Classifications
F; F41; F41G; F41G11/00; F41G11/001; F41G11/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US830729A
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US983047A
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US2126195A
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US2193302A
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US2202000A
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US2200869A
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US2350169A
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US2401367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |