US2853903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro-drilling machine
Assignee: Individual
•
Filing: 1956-08-31
•
Granted: 1958-09-30
•
Expires: 1976-08-31
Abstract
No abstract record available.
Inventors
- 👤 Adolph F Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
B; B23; B23B; B23B41/00; B23B41/14; Y; Y10; Y10S; Y10S408/00; Y10S408/704; Y10T; Y10T408/00; Y10T408/13; Y10T408/14; Y10T408/23; Y10T408/65; Y10T408/675; Y10T408/6771; Y10T408/6776; Y10T74/00; Y10T74/17; Y10T74/173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1763552A
Cited
US2439965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |