US3223704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium sulfamates
Assignee: Hollichem Corp
•
Filing: 1961-10-27
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Granted: 1965-12-14
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Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Shibe
- 👤 Sittenfield Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:41
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/46; A61K8/466; A61Q; A61Q17/00; A61Q17/005; A61Q11/00; A61Q17/04; A61Q5/00; A61Q5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
QUATERNARY AMMONIUM ORGANIC MONO-SULFAMATE.
Claim 2
Dependent Claim
4 words
QUATERNARY AMMONIUM ORGANIC MONO-SULFAMATE.
References Cited (Backward Citations)
US2732393A
Cited
US2891065A
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US3109857A
Cited
US2212171A
Cited
US2383617A
Cited
US2746986A
Cited
US2809146A
Cited
US2926119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |