US2214460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of rubber
Assignee: Monsanto Chemicals Ltd
•
Filing: 1937-10-16
•
Granted: 1940-09-10
•
Expires: 1957-10-16
Abstract
No abstract record available.
Inventors
- 👤 Marion W Harman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:54
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
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) | 1943-09-10 | 1944-03-11 | 1944-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-10 | 1948-03-11 | 1948-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-10 | 1952-03-11 | 1952-09-10 | $7700.00 | Window Closed / Lapsed |