US3175912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic organic chemical preservative for beer
Assignee: F AND M SCHAEFER BREWING CO
•
Filing: 1961-08-11
•
Granted: 1965-03-30
•
Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Frede B Strandskov
- 👤 John B Bockelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
C; C12; C12H; C12H1/00; C12H1/12; C12H1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
PACKAGED FINISHED BEER CONTAINING A MICRO-BIOLOGICAL GROWTH INHIBITING AMOUNT OF HEPTYL ESTER OF PARA-HYDROXYBENZOIC ACID.
Claim 2
Dependent Claim
15 words
PACKAGED FINISHED BEER CONTAINING A MICRO-BIOLOGICAL GROWTH INHIBITING AMOUNT OF HEPTYL ESTER OF PARA-HYDROXYBENZOIC ACID.
References Cited (Backward Citations)
US2842441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |