US3138864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of working metal
Assignee: Individual
•
Filing: 1961-05-25
•
Granted: 1964-06-30
•
Expires: 1981-05-25
Abstract
No abstract record available.
Inventors
- 👤 Aldo L Coen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
B; B21; B21D; B21D53/00; B21D51/00; B21D51/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF WORKING SHEET METAL TO MAKE A SUBSTANTIALLY CYLINDRICAL, HOLLOW BODY HAVING A RE-ENTRY OPENING IN AT LEAST ONE END THEREOF THE DIAMETER OF WHICH IS SUBSTANTIALLY SMALLER THAN THE INTERNAL DIAMETER OF THE HOLLOW BODY: SAID METHOD COMPRISING, FORMING SAID HOLLOW BODY FROM A SHEET OF METAL TO THE INTERNAL CONFIGURATION AND DIMENSIONS DESIRED FOR THE COMPLETED HOLLOW BODY AND WITH AN INTERIOR LIP AT SAID ONE END THEREOF, CONFINING SAID HOLLOW BODY ONLY ON ITS EXTERIOR WITH SAID LIP EXPOSED, SAID LIP BEING SUBTENDED ONLY BY SAID HOLLOW
Claim 2
Independent Claim
92 words
A METHOD OF WORKING SHEET METAL TO MAKE A SUBSTANTIALLY CYLINDRICAL, HOLLOW BODY HAVING A RE-ENTRY OPENING IN AT LEAST ONE END THEREOF THE DIAMETER OF WHICH IS SUBSTANTIALLY SMALLER THAN THE INTERNAL DIAMETER OF THE HOLLOW BODY: SAID METHOD COMPRISING, FORMING SAID HOLLOW BODY FROM A SHEET OF METAL TO THE INTERNAL CONFIGURATION AND DIMENSIONS DESIRED FOR THE COMPLETED HOLLOW BODY AND WITH AN INTERIOR LIP AT SAID ONE END THEREOF, CONFINING SAID HOLLOW BODY ONLY ON ITS EXTERIOR WITH SAID LIP EXPOSED, SAID LIP BEING SUBTENDED ONLY BY SAID HOLLOW
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |