Patent US2718735A successfully refreshed from Google Patents.
US2718735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sander
Assignee: Individual
•
Filing: 1952-07-07
•
Granted: 1955-09-27
•
Expires: 1972-07-07
Abstract
No abstract record available.
Inventors
- 👤 William P Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:56
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1412365A
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US1332123A
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US1631898A
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US1920364A
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DE602436C
Cited
US2280867A
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US2280762A
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US2544810A
Cited
US2590913A
Cited
US2621453A
Cited
US2576745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |