US2235944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust prevention and removal
Assignee: Individual
•
Filing: 1936-08-17
•
Granted: 1941-03-25
•
Expires: 1956-08-17
Abstract
No abstract record available.
Inventors
- 👤 Nicholas G Penniman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:10
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/086; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/08; C10M2207/10; C10M2207/16; C10M2207/20; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/042; C10M2211/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10N; C10N2010/00; C10N2010/08; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12
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) | 1944-03-24 | 1944-09-23 | 1945-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-24 | 1948-09-23 | 1949-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-24 | 1952-09-23 | 1953-03-25 | $7700.00 | Window Closed / Lapsed |