US2546957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill carriage assembly
Assignee: Individual
•
Filing: 1949-04-01
•
Granted: 1951-03-27
•
Expires: 1969-04-01
Abstract
No abstract record available.
Inventors
- 👤 John W Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:23
CPC Classifications
D; D06; D06H; D06H1/00; D06H1/003; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/556; Y10T408/561; Y10T408/5612; Y10T408/5623; Y10T408/56253; Y10T408/65; Y10T408/675
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2211082A
Cited
US2359037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |