US2370588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic percarbonates
Assignee: PPG Industries Inc
•
Filing: 1942-10-22
•
Granted: 1945-02-27
•
Expires: 1962-10-22
Abstract
No abstract record available.
Inventors
- 👤 Strain Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:13
CPC Classifications
C; C09; C09F; C09F9/00; C07; C07C; C07C407/00; C07C409/00; C07C409/32; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/12; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F4/34; C11; C11D; C11D3/00; C11D3/39; C11D3/3945; D; D06; D06L; D06L4/00; D06L4/10; D06L4/15; Y; Y10; Y10S; Y10S260/00; Y10S260/28
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) | 1948-02-27 | 1948-08-28 | 1949-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-27 | 1952-08-28 | 1953-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-27 | 1956-08-28 | 1957-02-27 | $7700.00 | Window Closed / Lapsed |