US3272532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-leaf tag
Assignee: MIDWEST CHEMICAL CORP
•
Filing: 1964-12-01
•
Granted: 1966-09-13
•
Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 Robert W Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:07
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/14; Y; Y10; Y10S; Y10S462/00; Y10S462/90; Y10S462/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |