US3081725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press
Assignee: Individual
•
Filing: 1958-11-17
•
Granted: 1963-03-19
•
Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Ross B Treer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:10
CPC Classifications
B; B21; B21D; B21D22/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1849362A
Cited
GB542580A
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US2340465A
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US2482449A
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US2485009A
Cited
US2616543A
Cited
US2766710A
Cited
US2701446A
Cited
US2812843A
Cited
US2770342A
Cited
US2937734A
Cited
US2912564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |