Patent US2751762A successfully refreshed from Google Patents.
US3395765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small rotary hammer
Assignee: Milwaukee Electric Tool Corp
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Filing: 1966-12-19
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Granted: 1968-08-06
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Jerome L Schnettler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
B; B25; B25D; B25D16/00; B25D16/006; B23; B23B; B23B45/00; B23B45/008; B25D2211/00; B25D2211/06; B25D2211/062; B25D2211/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A HAMMER DRILL COMPRISING: A DRIVEN SPINDLE,; A ROTATABLE DRIVE CHUCK MOUNTED FOR LIMITED AXIAL MOVEMENT, SAID CHUCK HAVING FIRST CLUTCH TEETH; MEANS INTERCONNECTING SAID SPINDLE AND SAID CHUCK; A CAM ROTATABLE WITH RESPECT TO SAID CHUCK, MEANS FOR SUPPORTING SAID CAM AND PREVENTING AXIAL DISPLACEMENT THEREOF, SAID CAM HAVING SECOND CLUTCH TEETH ENGAGEABLE BY SAID FIRST CLUTCH TEETH UPON AXIAL MOVEMENT OF SAID DRIVE CHUCK, SAID CAM HAVING A FIRST CAM SURFACE; AND
Claim 2
Dependent Claim
74 words
A HAMMER DRILL COMPRISING: A DRIVEN SPINDLE,; A ROTATABLE DRIVE CHUCK MOUNTED FOR LIMITED AXIAL MOVEMENT, SAID CHUCK HAVING FIRST CLUTCH TEETH; MEANS INTERCONNECTING SAID SPINDLE AND SAID CHUCK; A CAM ROTATABLE WITH RESPECT TO SAID CHUCK, MEANS FOR SUPPORTING SAID CAM AND PREVENTING AXIAL DISPLACEMENT THEREOF, SAID CAM HAVING SECOND CLUTCH TEETH ENGAGEABLE BY SAID FIRST CLUTCH TEETH UPON AXIAL MOVEMENT OF SAID DRIVE CHUCK, SAID CAM HAVING A FIRST CAM SURFACE; AND
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |