US2015675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ADAM A SUTCLIFFE
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Filing: 1933-02-21
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Granted: 1935-10-01
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Expires: 1953-02-21
Abstract
No abstract record available.
Inventors
- 👤 Hays Clifton Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/50; G01J3/51; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/251; G01J2003/466; G01J3/463
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) | 1938-09-30 | 1939-04-01 | 1939-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-30 | 1943-04-01 | 1943-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-30 | 1947-04-01 | 1947-10-01 | $7700.00 | Window Closed / Lapsed |