Patent JPH08322786A successfully refreshed from Google Patents.
US1374965A
Expired / Lapsed
US
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Apparatus for treating light and similar rays
Assignee: Individual
•
Filing: 1920-01-24
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Granted: 1921-04-19
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Expires: 1940-01-24
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:10
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/005
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) | 1924-04-18 | 1924-10-18 | 1925-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-04-18 | 1928-10-18 | 1929-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-04-18 | 1932-10-18 | 1933-04-19 | $7700.00 | Window Closed / Lapsed |