US2717700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flask holder for a mechanical shaker
Assignee: Individual
•
Filing: 1951-02-21
•
Granted: 1955-09-13
•
Expires: 1971-02-21
Abstract
No abstract record available.
Inventors
- 👤 William G Gruzensky
- 👤 Charlotte M Heotis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:57
CPC Classifications
B; B01; B01F; B01F31/00; B01F31/20; B01F31/201; B01F35/00; B01F35/40; B01F35/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US709819A
Cited
US1085450A
Cited
US1203202A
Cited
US1340660A
Cited
US1681404A
Cited
US1770173A
Cited
US1997400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |