US1885977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain pipe for flushing attachments
Assignee: ALBERTA E DENISON
•
Filing: 1930-02-17
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Granted: 1932-11-01
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Expires: 1950-02-17
Abstract
No abstract record available.
Inventors
- 👤 Louis S Denison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/304; E03C1/306; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684
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) | 1935-11-01 | 1936-05-02 | 1936-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-01 | 1940-05-02 | 1940-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-01 | 1944-05-02 | 1944-11-01 | $7700.00 | Window Closed / Lapsed |