Patent US1305731A successfully refreshed from Google Patents.
US1305731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Samtbiug-ma chiite
Assignee: —
•
Filing: —
•
Granted: 1919-06-03
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Expires: 1936-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:10
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/10; B24B9/102
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) | 1922-06-02 | 1922-12-02 | 1923-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-06-02 | 1926-12-02 | 1927-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-06-02 | 1930-12-02 | 1931-06-03 | $7700.00 | Window Closed / Lapsed |