US3147740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: Individual
•
Filing: 1961-11-30
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Granted: 1964-09-08
•
Expires: 1981-11-30
Abstract
No abstract record available.
Inventors
- 👤 Bross Helmut Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
B; B43; B43K; B43K24/00; B43K24/02; B43K24/023; B43K24/08; B43K24/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A WRITING INSTRUMENT COMPRISING A CASING DEFINING UPPER AND LOWER ENDS AND HAVING AN ELASTIC UPPER PORTION AND A RIGID LOWER PORTION; A WRITING UNIT MOUNTED IN SAID CASING FOR MOVEMENT BETWEEN A POINT RETRACTED POSITION AND A POINT PROTRACTED POSITION, SAID UNIT HAVING A LOWER END DEFINING A WRITING POINT AND AN UPPER END; ACTUATING MEANS CARRIED BY SAID UPPER PORTION OF SAID CASING PROXIMATE THE UPPER END OF SAID CASING, SAID ACTUATING MEANS HAVING SIDES DEFINING A SUBSTANTIALLY CONICAL BORE NORMALLY COAXIAL WITH THE UPPER END OF SAID WRITING UNIT; RESILIENT MEANS URGING SAID WRITING UNIT TO SAID POINT RETRACTING POSITION WHEREBY SAID UPPER END OF
Claim 2
Dependent Claim
108 words
A WRITING INSTRUMENT COMPRISING A CASING DEFINING UPPER AND LOWER ENDS AND HAVING AN ELASTIC UPPER PORTION AND A RIGID LOWER PORTION; A WRITING UNIT MOUNTED IN SAID CASING FOR MOVEMENT BETWEEN A POINT RETRACTED POSITION AND A POINT PROTRACTED POSITION, SAID UNIT HAVING A LOWER END DEFINING A WRITING POINT AND AN UPPER END; ACTUATING MEANS CARRIED BY SAID UPPER PORTION OF SAID CASING PROXIMATE THE UPPER END OF SAID CASING, SAID ACTUATING MEANS HAVING SIDES DEFINING A SUBSTANTIALLY CONICAL BORE NORMALLY COAXIAL WITH THE UPPER END OF SAID WRITING UNIT; RESILIENT MEANS URGING SAID WRITING UNIT TO SAID POINT RETRACTING POSITION WHEREBY SAID UPPER END OF
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |