US1138474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type-writing machine.
Assignee: Individual
•
Filing: 1914-03-18
•
Granted: 1915-05-04
•
Expires: 1934-03-18
Abstract
No abstract record available.
Inventors
- 👤 Fritz Heidner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:42
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202; G06F3/0219; H; H01; H01H; H01H2217/00; H01H2217/028
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) | 1918-05-03 | 1918-11-02 | 1919-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-03 | 1922-11-02 | 1923-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-03 | 1926-11-02 | 1927-05-04 | $7700.00 | Window Closed / Lapsed |