US1467451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular drill
Assignee: Individual
•
Filing: 1919-11-22
•
Granted: 1923-09-11
•
Expires: 1939-11-22
Abstract
No abstract record available.
Inventors
- 👤 John H Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:05
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/14; B28D1/146; F; F16; F16B; F16B13/00; F16B13/002
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) | 1926-09-10 | 1927-03-12 | 1927-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-09-10 | 1931-03-12 | 1931-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-09-10 | 1935-03-12 | 1935-09-11 | $7700.00 | Window Closed / Lapsed |