US3431601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular die
Assignee: Individual
•
Filing: 1966-12-05
•
Granted: 1969-03-11
•
Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Willis L Lipscomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:07
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/20; B22D17/22; B22C; B22C7/00; B22C7/005; B29; B29C; B29C33/00; B29C33/0022; B29C33/30; B29C33/306; B29C45/00; B29C45/17; B29C45/26; B29C45/2673
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |