US2981330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulp molding die
Assignee: Diamond National Corp
•
Filing: 1956-12-20
•
Granted: 1961-04-25
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Wendell H Stickney
- 👤 Richard F Reifers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:22
CPC Classifications
D; D21; D21J; D21J7/00; Y; Y10; Y10S; Y10S425/00; Y10S425/029
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB165500A
Cited
US1669426A
Cited
US1742411A
Cited
US2079667A
Cited
US2273055A
Cited
US2392804A
Cited
US2400091A
Cited
US2619012A
Cited
US2718826A
Cited
US2750632A
Cited
US2851931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |