Patent US1352117A successfully refreshed from Google Patents.
US1352117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
davis
Assignee: —
•
Filing: —
•
Granted: 1920-09-07
•
Expires: 1937-09-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:08
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/20; H02H3/205; H01; H01T; H01T1/00; H01T1/14
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) | 1923-09-07 | 1924-03-08 | 1924-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-09-07 | 1928-03-08 | 1928-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-09-07 | 1932-03-08 | 1932-09-07 | $7700.00 | Window Closed / Lapsed |