Patent US1778520A successfully refreshed from Google Patents.
US1778520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine and other type flushing toilet
Assignee: Individual
•
Filing: 1929-05-31
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Granted: 1930-10-14
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Expires: 1949-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Curtiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:11
CPC Classifications
B; B63; B63B; B63B29/00; B63B29/16; B63B29/02; B63B29/14; B63J; B63J4/00; B63J4/006; E; E03; E03D; E03D11/00; E03D11/02; E03D11/10; E03D3/00; E03D5/00
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) | 1933-10-13 | 1934-04-14 | 1934-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-13 | 1938-04-14 | 1938-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-13 | 1942-04-14 | 1942-10-14 | $7700.00 | Window Closed / Lapsed |