US3538577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling tube height by tensile inflation
Assignee: Olin Corp
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Filing: 1969-06-09
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Granted: 1970-11-10
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Expires: 1989-06-09
Abstract
No abstract record available.
Inventors
- 👤 Michael P O'malley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:02
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369; Y10T29/49371; Y10T29/49805
Claims Analysis
Total Claims: 0
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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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |