US3516475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding method and apparatus
Assignee: Herman Pneumatic Machine Co
•
Filing: 1966-11-14
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Granted: 1970-06-23
•
Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 William E Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:55
CPC Classifications
B; B22; B22C; B22C21/00; B22C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2012478A
Cited
US2680270A
Cited
US2803860A
Cited
US2867870A
Cited
US3017675A
Cited
US3273207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |