US2688424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible container for dispensing predetermined quantities of materials
Assignee: Individual
•
Filing: 1950-12-11
•
Granted: 1954-09-07
•
Expires: 1970-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert W Keiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:48
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/08; G01F11/082; Y; Y10; Y10S; Y10S165/00; Y10S165/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |