Patent US3499577A successfully refreshed from Google Patents.
US3499577A
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Method and apparatus for dosing powder
Assignee: Alfa Laval AB
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Filing: 1968-04-09
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Granted: 1970-03-10
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Expires: 1988-04-09
Abstract
No abstract record available.
Inventors
- 👤 Vilgot Raymond Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
G; G05; G05D; G05D11/00; B; B01; B01J; B01J8/00; B01J8/0015; B01J8/003; C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/687; C10; C10G; C10G25/00; C10G25/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1283071A
Cited
US2408221A
Cited
GB708704A
Cited
US3104030A
Cited
US3188144A
Cited
FR1337904A
Cited
US3255921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |