US915568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tap-head.
Assignee: Individual
•
Filing: 1906-09-13
•
Granted: 1909-03-16
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Expires: 1926-09-13
Abstract
No abstract record available.
Inventors
- 👤 Ira A Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/38; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17564; Y10T408/00; Y10T408/70; Y10T408/72; Y10T408/73
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) | 1912-03-15 | 1912-09-14 | 1913-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-15 | 1916-09-14 | 1917-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-15 | 1920-09-14 | 1921-03-16 | $7700.00 | Window Closed / Lapsed |