Patent US4291341A successfully refreshed from Google Patents.
Patent US1635477A successfully refreshed from Google Patents.
US1635477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siphon
Assignee: Individual
•
Filing: 1924-10-06
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Granted: 1927-07-12
•
Expires: 1944-10-06
Abstract
No abstract record available.
Inventors
- 👤 Hall Charles Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:04
CPC Classifications
E; E03; E03B; E03B3/00; E03B3/06; E03B3/08; E03B11/00; E03B11/10; Y; Y02; Y02A; Y02A20/00; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/272; Y10T137/2761; Y10T137/2774; Y10T137/2795; Y10T137/402; Y10T137/7287; Y10T137/7498
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) | 1930-07-11 | 1931-01-10 | 1931-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-11 | 1935-01-10 | 1935-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-11 | 1939-01-10 | 1939-07-12 | $7700.00 | Window Closed / Lapsed |