Patent US3513505A successfully refreshed from Google Patents.
US3513505A
Expired / Lapsed
US
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Compact differential pressure forming machine
Assignee: Brown Machine Company of Michigan Inc
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Filing: 1966-10-05
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Granted: 1970-05-26
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Gaylord W Brown
- 👤 Bradley A Schnepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:01
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |