US3503237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of articles by rolling
Assignee: ROTARY PROFILE ANSTALT
•
Filing: 1966-12-27
•
Granted: 1970-03-31
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jacob Marcovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:27
CPC Classifications
B; B21; B21H; B21H1/00; B21H1/18; B21H1/14; B21H1/16; B21H3/00; B21H3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US417733A
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US672516A
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US1370978A
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US1366717A
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US1367299A
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US1496083A
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US2061034A
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US2342917A
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US2495533A
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US3382693A
Cited
US3277684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |