US3297449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged preleavened dough containing sodium acid pyrophosphate, and sodium and potassium bicarbonate
Assignee: Procter and Gamble Co
•
Filing: 1963-11-13
•
Granted: 1967-01-10
•
Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Baker
- 👤 Charles G Lindeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:56
CPC Classifications
A; A21; A21D; A21D10/00; A21D10/02; A21D10/025; A21D2/00; A21D2/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB550539A
Cited
US2478618A
Cited
US2793121A
Cited
US2942988A
Cited
US3034899A
Cited
US3142573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |