Patent US2385802A successfully refreshed from Google Patents.
US2385802A
Expired / Lapsed
US
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Process for the manufacture of plastics
Assignee: Research Corp
•
Filing: 1942-02-09
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Granted: 1945-10-02
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Expires: 1962-02-09
Abstract
No abstract record available.
Inventors
- 👤 John D Ferry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08K5/04; C08K5/05; C08K5/053; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83; Y10S602/00; Y10S602/90
Claims Analysis
Total Claims: 0
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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) | 1948-10-01 | 1949-04-02 | 1949-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-01 | 1953-04-02 | 1953-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-01 | 1957-04-02 | 1957-10-02 | $7700.00 | Window Closed / Lapsed |