Patent US3156388A successfully refreshed from Google Patents.
US3156388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder
Assignee: Individual
•
Filing: 1963-11-29
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Granted: 1964-11-10
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Charles S Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:19
CPC Classifications
B; B25; B25H; B25H3/00; B25H3/04; Y; Y10; Y10S; Y10S224/00; Y10S224/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A TOOL HOLDER FOR A TOOL HAVING A HANDLE, THE COMBINATION OF A BODY, SPACED EARS PROJECTING OUTWARDLY FROM SAID BODY TO DEFINE AN OPENING TO RECEIVE THE TOOL HANDLE, EACH OF SAID EARS HAVING A SLOT IN COMMUNICATION WITH SAID OPENING, A PLUNGER IN EACH OF SAID SLOTS, EACH PLUNGER BEING MOVABLE BETWEEN TWO POSITIONS, IN ONE POSITION SAID PLUNGERS BEING IN END TO END CLOSELY SPACED RELATION AND IN SAID OTHER POSITIONS SAID PLUNGERS BEING IN END TO END SPACED APART RELATION TO PERMIT REMOVAL AND ACCEPTANCE OF A TOOL HANDLE, A SPRING MEANS ACTING BETWEEN EACH PLUNGER AND SAID BODY URGING SAID PLUNGER TO SAID CLOSELY SPACED END TO END RELATION AT
Claim 2
Dependent Claim
116 words
IN A TOOL HOLDER FOR A TOOL HAVING A HANDLE, THE COMBINATION OF A BODY, SPACED EARS PROJECTING OUTWARDLY FROM SAID BODY TO DEFINE AN OPENING TO RECEIVE THE TOOL HANDLE, EACH OF SAID EARS HAVING A SLOT IN COMMUNICATION WITH SAID OPENING, A PLUNGER IN EACH OF SAID SLOTS, EACH PLUNGER BEING MOVABLE BETWEEN TWO POSITIONS, IN ONE POSITION SAID PLUNGERS BEING IN END TO END CLOSELY SPACED RELATION AND IN SAID OTHER POSITIONS SAID PLUNGERS BEING IN END TO END SPACED APART RELATION TO PERMIT REMOVAL AND ACCEPTANCE OF A TOOL HANDLE, A SPRING MEANS ACTING BETWEEN EACH PLUNGER AND SAID BODY URGING SAID PLUNGER TO SAID CLOSELY SPACED END TO END RELATION AT
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |