US3444589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming sheet material to provide three-dimensional shapes
Assignee: RICHARD E BOWIN
•
Filing: 1965-11-29
•
Granted: 1969-05-20
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Richard E Bowin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
B; B29; B29C; B29C33/00; B29C51/00; B29C51/002; B29C51/004; B29C51/08; B29D; B29D99/00; B29D99/0064; B29L; B29L2031/00; B29L2031/48; B29L2031/4871; B29L2031/4885
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) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |