US1033965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binocular magnifier.
Assignee: F A Hardy & Co
•
Filing: 1912-02-17
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Granted: 1912-07-30
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Expires: 1932-02-17
Abstract
No abstract record available.
Inventors
- 👤 Charles J Troppman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:06
CPC Classifications
G; G02; G02B; G02B25/00; G02B25/002; G02B25/004
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) | 1915-07-30 | 1916-01-29 | 1916-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-07-30 | 1920-01-29 | 1920-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-07-30 | 1924-01-29 | 1924-07-30 | $7700.00 | Window Closed / Lapsed |