US2574166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for dispensing discrete particles
Assignee: Individual
•
Filing: 1947-04-03
•
Granted: 1951-11-06
•
Expires: 1967-04-03
Abstract
No abstract record available.
Inventors
- 👤 Ira S Boydstun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:41
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB239377A
Cited
US136643A
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US335940A
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US738855A
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US852603A
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US951511A
Cited
US1165907A
Cited
GB231010A
Cited
DE666373C
Cited
US2122695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |