US3170229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of hollow articles
Assignee: Olin Corp
•
Filing: 1962-07-19
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Granted: 1965-02-23
•
Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 William Vernon Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:53
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49364; Y10T29/49366; Y10T29/49369; Y10T29/49371; Y10T29/49805; Y10T29/53; Y10T29/53113; Y10T29/53122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR FABRICATING A HOLLOW PANEL FROM A BLANK HAVING AN UNJOINED INTERIOR PORTION CONTAINED WITHIN OPPOSITE OUTER FACES OF SAID BLANK COMPRISING HOLDING SAID BLANK AGAINST A RIGID SURFACE ADJACENT ONE FACE OF SAID BLANK BY UNIFORM APPLICATION OF A HYDRAULIC BLANK-HOLDING PRESSURE ON THE OTHER FACE OF SAID BLANK, MAINTAINING SAID BLANK-HOLDING PRESSURE FOR A PREDETERMINED TIME INTERVAL OF AT LEAST 3 SECONDS, SUBSEQUENTLY INJECTING SUFFICIENT BLANK-EXPANDING HYDRAULIC PRESSURE WITHIN SAID UNJOINED PORTION TO DISTEND SAID UNJOINED PORTION AND RELEASING SAID BLANK-HOLDING AND BLANK-EXPANDING PRESSURES.
Claim 2
Independent Claim
88 words
A METHOD FOR FABRICATING A HOLLOW PANEL FROM A BLANK HAVING AN UNJOINED INTERIOR PORTION CONTAINED WITHIN OPPOSITE OUTER FACES OF SAID BLANK COMPRISING HOLDING SAID BLANK AGAINST A RIGID SURFACE ADJACENT ONE FACE OF SAID BLANK BY UNIFORM APPLICATION OF A HYDRAULIC BLANK-HOLDING PRESSURE ON THE OTHER FACE OF SAID BLANK, MAINTAINING SAID BLANK-HOLDING PRESSURE FOR A PREDETERMINED TIME INTERVAL OF AT LEAST 3 SECONDS, SUBSEQUENTLY INJECTING SUFFICIENT BLANK-EXPANDING HYDRAULIC PRESSURE WITHIN SAID UNJOINED PORTION TO DISTEND SAID UNJOINED PORTION AND RELEASING SAID BLANK-HOLDING AND BLANK-EXPANDING PRESSURES.
References Cited (Backward Citations)
US3003228A
Cited
US2866429A
Cited
US3094956A
Cited
US3066389A
Cited
US2993263A
Cited
US2966730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |