US3552239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable drill press
Assignee: Individual
•
Filing: 1968-06-12
•
Granted: 1971-01-05
•
Expires: 1988-06-12
Abstract
Abstract A DRIVE FOR SECURING A PORTABLE DRILL TO THE MATERIAL BEING WORKED UPON AND PROVIDING LEVERAGE THROUGH A FULCRUM FOR APPLYING PRESSURE TO THE DRILL. THE FULCRUM IS EXTENDABLE AND SLIDABLY AND PIVOTALLY CONNECTED TO THE STATIONARY BASE SUPPORT WHILE THE LEVER IS PIVOTALLY AND ROTATABLY CONNECTED TO THE FULCRUM. THE DRILL ATTACHMENT MEANS IS ROTATABLY AND PIVOTALLY CONNECTED TO THE LEVER OUTWARDLY OF A HANDLE MEANS THEREON OPPOSITELY DISPOSED FROM THE FULCRUM.
Inventors
- 👤 Roy L Yeaman
- 👤 Otis D Corbin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:04
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/563; Y10T408/5635; Y10T408/5638; Y10T408/65; Y10T408/675; Y10T408/6786; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8595
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |