US3452584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mandrels for use in the production of tubes
Assignee: TI Group Services Ltd
•
Filing: 1966-12-23
•
Granted: 1969-07-01
•
Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Alec John Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:58
CPC Classifications
B; B21; B21B; B21B25/00; B21C; B21C3/00; B21C3/16; Y; Y10; Y10T; Y10T403/00; Y10T403/60
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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |