Patent US3197856A successfully refreshed from Google Patents.
US3197856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosively joining metals to form a continuous sheet
Assignee: RTX Corp
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Filing: 1963-01-02
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Granted: 1965-08-03
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Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick C Polhemus
- 👤 George D Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:32
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
METHOD OF FILLING A HOLE IN A METAL PLATE WITH A METAL PLUG WHEREIN THE METALS ARE CAPABLE OF BEING EXPLOSIVELY JOINED: (A) PLACING A METAL PLUG IN THE HOLE SO AS TO FIT SNUGLY SAID PLUG BEING THICKER THAN THE PLATE; (B) POSITIONING SAID PLUG SO THAT IT EXTENDS ON EACH SIDE OF SAID PLATE A SMALL AMOUNT; (C) PLACING A DRIVER PLATE ON EACH END OF SAID PLUG; (D) PLACING AN EXPLOSIVE CHARGE ON EACH OPEN FACE OF EACH DRIVER PLATE; AND
Claim 2
Dependent Claim
84 words
METHOD OF FILLING A HOLE IN A METAL PLATE WITH A METAL PLUG WHEREIN THE METALS ARE CAPABLE OF BEING EXPLOSIVELY JOINED: (A) PLACING A METAL PLUG IN THE HOLE SO AS TO FIT SNUGLY SAID PLUG BEING THICKER THAN THE PLATE; (B) POSITIONING SAID PLUG SO THAT IT EXTENDS ON EACH SIDE OF SAID PLATE A SMALL AMOUNT; (C) PLACING A DRIVER PLATE ON EACH END OF SAID PLUG; (D) PLACING AN EXPLOSIVE CHARGE ON EACH OPEN FACE OF EACH DRIVER PLATE; AND
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |