Patent US2206021A successfully refreshed from Google Patents.
US2722935A
Expired / Lapsed
US
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Powder dispenser
Assignee: Individual
•
Filing: 1949-03-22
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Granted: 1955-11-08
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Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Robert E Thompson
- 👤 Robert J Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0028; B; B05; B05B; B05B11/00; B05B11/01; B05B11/06; B05B11/062; A61M2202/00; A61M2202/06; A61M2202/064
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) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |