US3420715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for phosphate coating solution
Assignee: Hillshire Brands Co
•
Filing: 1965-06-04
•
Granted: 1969-01-07
•
Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Robert F Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C23C22/36; C23C22/07; C23C22/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2516685A
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US2665231A
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US2886477A
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US3185596A
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US3331710A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |