Patent US1630380A successfully refreshed from Google Patents.
US734590A
Expired / Lapsed
US
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Letter-opener.
Assignee: Individual
•
Filing: 1902-12-02
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Granted: 1903-07-28
•
Expires: 1922-12-02
Abstract
No abstract record available.
Inventors
- 👤 Ina Minnich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:12
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/001; Y; Y10; Y10S; Y10S30/00; Y10S30/03
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) | 1906-07-27 | 1907-01-26 | 1907-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-07-27 | 1911-01-26 | 1911-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-07-27 | 1915-01-26 | 1915-07-28 | $7700.00 | Window Closed / Lapsed |