Patent US1251691A successfully refreshed from Google Patents.
US1251691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moistening attachment for type-writer ribbons.
Assignee: Individual
•
Filing: 1917-07-13
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Granted: 1918-01-01
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Expires: 1937-07-13
Abstract
No abstract record available.
Inventors
- 👤 John C Phelan
- 👤 Hermann B Macalpine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:19
CPC Classifications
B; B41; B41L; B41L7/00; B41L7/02; B41L7/08; H; H10; H10W; H10W72/00; H10W72/01; H10W72/013
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) | 1920-12-31 | 1921-07-02 | 1922-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-31 | 1925-07-02 | 1926-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-31 | 1929-07-02 | 1930-01-01 | $7700.00 | Window Closed / Lapsed |