US3448967A
Expired / Lapsed
US
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Apparatus for automatically measuring proper additive quantities in a mixing apparatus
Assignee: Adamson United Co
•
Filing: 1967-08-16
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Granted: 1969-06-10
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Expires: 1987-08-16
Abstract
No abstract record available.
Inventors
- 👤 Rex C Seanor
- 👤 S Everett Perlberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:43
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/133; G05D11/134; B; B29; B29B; B29B7/00; B29B7/02; B29B7/22; B29B7/24; B29B7/242; B29B7/244; B29B7/28; B29B7/286; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B29B7/72; B29B7/726; B29B7/74; B29B7/7476; B29B7/7495; B29B7/80; B29B7/88; B29B7/885; B29B7/90; B29B7/905; B29B7/94; G01; G01G; G01G19/00; G01G19/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2105266A
Cited
US3170677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |