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Patent US2926561A successfully refreshed from Google Patents.
US2926561A
Expired / Lapsed
US
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Panoramic picture system
Assignee: Individual
•
Filing: 1956-01-30
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Granted: 1960-03-01
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Keeble Roy Herbert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:39
CPC Classifications
G; G03; G03B; G03B37/00; G03B37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US778394A
Cited
US1330447A
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US1482503A
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US1489988A
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US1836584A
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US1783463A
Cited
US2542789A
Cited
US2660087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |