US2993232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-form fabricating apparatus
Assignee: Individual
•
Filing: 1957-01-02
•
Granted: 1961-07-25
•
Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 Carroll H Van Hartesveldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:58
CPC Classifications
B; B29; B29B; B29B11/00; B29B11/14; B29B11/16; B29C; B29C70/00; B29C70/04; B29C70/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1866617A
Cited
US2592470A
Cited
US2698271A
Cited
US2686552A
Cited
US2702261A
Cited
US2615201A
Cited
US2744044A
Cited
US2777170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |