US2489776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weight controlled container filling device
Assignee: Individual
•
Filing: 1945-07-16
•
Granted: 1949-11-29
•
Expires: 1965-07-16
Abstract
No abstract record available.
Inventors
- 👤 Helen M Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:29
CPC Classifications
G; G01; G01G; G01G1/00; G01G1/18; G01G1/26; G01G1/30; B; B65; B65B; B65B3/00; B65B3/26; B65B3/28; B67; B67C; B67C3/00; B67C3/30; G01G13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US70531A
Cited
US607476A
Cited
US1523511A
Cited
US1773946A
Cited
US1726931A
Cited
US2004034A
Cited
FR816908A
Cited
US2387894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |