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Patent US1244159A successfully refreshed from Google Patents.
US1244159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photometer.
Assignee: Individual
•
Filing: 1916-05-13
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Granted: 1917-10-23
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Expires: 1936-05-13
Abstract
No abstract record available.
Inventors
- 👤 Frank W Adsit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:46
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/04
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) | 1920-10-22 | 1921-04-23 | 1921-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-10-22 | 1925-04-23 | 1925-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-10-22 | 1929-04-23 | 1929-10-23 | $7700.00 | Window Closed / Lapsed |