US3452792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud drilling machine
Assignee: ROBERT E FOREMAN
•
Filing: 1966-08-19
•
Granted: 1969-07-01
•
Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert E Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:25
CPC Classifications
B; B27; B27C; B27C3/00; B27C3/04; B23; B23Q; B23Q7/00; B23Q7/003; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/38; Y10T408/3833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |