Patent US6547804B2 successfully refreshed from Google Patents.
US2371142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticoerosive
Assignee: —
•
Filing: —
•
Granted: 1945-03-13
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Expires: 1962-03-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:13
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C10; C10M; C10M1/00; C10M1/08; C23F11/12; C23F11/124; C23F11/126; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/40; C10M2207/404; C10M2211/00; C10M2211/04; C10M2211/044; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/46; C10N2050/00; C10N2050/10
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) | 1948-03-12 | 1948-09-11 | 1949-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-12 | 1952-09-11 | 1953-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-12 | 1956-09-11 | 1957-03-13 | $7700.00 | Window Closed / Lapsed |