US3024950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing unit for selectively pouring or sifting pulverulent material
Assignee: Wallenstein & Spangenberg
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Filing: 1959-09-18
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Granted: 1962-03-13
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Expires: 1979-09-18
Abstract
No abstract record available.
Inventors
- 👤 David C Frison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:33
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/046; B65D47/20; B65D47/26; B65D47/28; B65D47/286
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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |