Patent US3291646A successfully refreshed from Google Patents.
US3291646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor in dry cell battery
Assignee: Honeywell International Inc
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Filing: 1964-09-10
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Granted: 1966-12-13
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Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence P Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/62; H01M4/628; H01M6/00; H01M6/04; H01M6/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF REDUCING CORROSION OF ZINC IN AN AMMONIUM CHLORIDE DRY CELL BATTERY ELECTROLYTE WHICH COMPRISES INCORPORATING IN SAID ELECTROLYTE AN ADDITIVE HAVING THE FORMULA RNH2 WHEREIN R IS AN ALIPHATIC HYDROCARBON RADICAL CONTAINING 16-18 CARBON ATOMS INCLUSIVE.
Claim 2
Independent Claim
39 words
A METHOD OF REDUCING CORROSION OF ZINC IN AN AMMONIUM CHLORIDE DRY CELL BATTERY ELECTROLYTE WHICH COMPRISES INCORPORATING IN SAID ELECTROLYTE AN ADDITIVE HAVING THE FORMULA RNH2 WHEREIN R IS AN ALIPHATIC HYDROCARBON RADICAL CONTAINING 16-18 CARBON ATOMS INCLUSIVE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |