US2222686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of synthetic resins and materials containing same
Assignee: Individual
•
Filing: 1937-03-25
•
Granted: 1940-11-26
•
Expires: 1957-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robin Leo
- 👤 Mathieu Van Roggen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:39
CPC Classifications
B; B29; B29C; B29C33/00; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/482; B29C66/00; B29C66/70; B29C66/73; B29C66/737; B29C66/7379; B29C66/73793; B29C66/80; B29C66/82; B29C66/822; B29C66/8223; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215
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) | 1943-11-26 | 1944-05-27 | 1944-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-26 | 1948-05-27 | 1948-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-26 | 1952-05-27 | 1952-11-26 | $7700.00 | Window Closed / Lapsed |