Patent US1290777A successfully refreshed from Google Patents.
US1290777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescope.
Assignee: Individual
•
Filing: 1916-07-26
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Granted: 1919-01-07
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Expires: 1936-07-26
Abstract
No abstract record available.
Inventors
- 👤 John B O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
G; G02; G02B; G02B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1922-01-06 | 1922-07-08 | 1923-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-01-06 | 1926-07-08 | 1927-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-01-06 | 1930-07-08 | 1931-01-07 | $7700.00 | Window Closed / Lapsed |