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US3287998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure drill guide
Assignee: Individual
•
Filing: 1964-07-20
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Granted: 1966-11-29
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Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Hans J Goernert
- 👤 Conrad L Goernert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:48
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; B23B51/066; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/5586; Y10T408/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE COMBINATION OF A CUTTING TOOL WHICH HAS A SHANK AND A CUTTER HEAD ON THE SHANK, OF A GUIDE COMPRISING A PLASTIC INSERT SURROUNDING THE CUTTER HEAD AND HAVING IN GENERAL A DIAMETER SLIGHTLY LESS THAN THAT OF THE CUTTER HEAD, THE PLASTIC BEING OF A SEMI-FLEXIBLE NATURE, AND MEANS PROVIDING PRESSURE EXERTED UPON THE INTERIOR SURFACE OF SAID PLASTIC INSERT TENDING TO APPLY PRESSURE THERETO IN AN OUTWARDLY RADIAL DIRECTION.
Claim 2
Dependent Claim
72 words
THE COMBINATION OF A CUTTING TOOL WHICH HAS A SHANK AND A CUTTER HEAD ON THE SHANK, OF A GUIDE COMPRISING A PLASTIC INSERT SURROUNDING THE CUTTER HEAD AND HAVING IN GENERAL A DIAMETER SLIGHTLY LESS THAN THAT OF THE CUTTER HEAD, THE PLASTIC BEING OF A SEMI-FLEXIBLE NATURE, AND MEANS PROVIDING PRESSURE EXERTED UPON THE INTERIOR SURFACE OF SAID PLASTIC INSERT TENDING TO APPLY PRESSURE THERETO IN AN OUTWARDLY RADIAL DIRECTION.
References Cited (Backward Citations)
US2283497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |