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Patent US1375858A successfully refreshed from Google Patents.
US1375858A
Expired / Lapsed
US
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Holding means for opaque objects
Assignee: SPENCER LENS CO
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Filing: 1919-11-13
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Granted: 1921-04-26
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Expires: 1939-11-13
Abstract
No abstract record available.
Inventors
- 👤 Harvey N Ott
- 👤 Frank H Bufton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:13
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64; F; F16; F16K; F16K15/00; F16K15/20; G03B21/001; G03B21/08
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) | 1924-04-25 | 1924-10-25 | 1925-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-04-25 | 1928-10-25 | 1929-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-04-25 | 1932-10-25 | 1933-04-26 | $7700.00 | Window Closed / Lapsed |