Patent US2371313A successfully refreshed from Google Patents.
US2371313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making plastic products
Assignee: Glenn L Martin Co
•
Filing: 1941-04-15
•
Granted: 1945-03-13
•
Expires: 1961-04-15
Abstract
No abstract record available.
Inventors
- 👤 William L Rast
- 👤 David M Musser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:47
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H11/00; D21H11/12; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/08; D21H23/10; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-03-12 | 1948-09-11 | 1949-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-12 | 1952-09-11 | 1953-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-12 | 1956-09-11 | 1957-03-13 | $7700.00 | Window Closed / Lapsed |