Patent US1215532A successfully refreshed from Google Patents.
US1215532A
Expired / Lapsed
US
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Time-recorder.
Assignee: Individual
•
Filing: 1915-07-12
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Granted: 1917-02-13
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Expires: 1935-07-12
Abstract
No abstract record available.
Inventors
- 👤 William F Hitchcock
- 👤 William D Hawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:49
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; B; B01; B01L; B01L3/00; B01L3/54; B01L3/545; B01L3/5453
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) | 1920-02-13 | 1920-08-14 | 1921-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-02-13 | 1924-08-14 | 1925-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-02-13 | 1928-08-14 | 1929-02-13 | $7700.00 | Window Closed / Lapsed |