Patent US718700A successfully refreshed from Google Patents.
US718700A
Expired / Lapsed
US
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Contractible core-bar.
Assignee: Individual
•
Filing: 1902-03-03
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Granted: 1903-01-20
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Expires: 1922-03-03
Abstract
No abstract record available.
Inventors
- 👤 Charles E Crosby
- 👤 Emil C Aurin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:08
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/28; B28B7/30; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1049
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) | 1906-01-19 | 1906-07-21 | 1907-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-01-19 | 1910-07-21 | 1911-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-01-19 | 1914-07-21 | 1915-01-20 | $7700.00 | Window Closed / Lapsed |