US1752620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siphon
Assignee: Individual
•
Filing: 1927-05-03
•
Granted: 1930-04-01
•
Expires: 1947-05-03
Abstract
No abstract record available.
Inventors
- 👤 Swindin Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:23
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/28; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/272; Y10T137/2747; Y10T137/2774; Y10T137/2781; Y10T137/2802; Y10T137/2815; Y10T137/2836; Y10T137/7287; Y10T137/7303; Y10T137/7313; Y10T137/7316; Y10T137/7339; Y10T137/8158; Y10T137/8342
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1933-03-31 | 1933-09-30 | 1934-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-03-31 | 1937-09-30 | 1938-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-03-31 | 1941-09-30 | 1942-04-01 | $7700.00 | Window Closed / Lapsed |