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Patent US3228829A successfully refreshed from Google Patents.
US3228829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of aqueous dispersions
Assignee: Dow Chemical Co
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Filing: 1963-11-04
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Granted: 1966-01-11
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Paul A Wolf
- 👤 Charles R Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:20
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/06; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2040/00; C10N2040/08; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS WHICH COMPRISES APPLYING TO BACTERIA AND THEIR HABITAT A BACTERICIDAL AMOUNT OF THE SALT OF HEXAMETHYLENETETRAMINE WITH AN UNSATURATED ALIPHATIC HALOHYDROCARBON OF TWO TO ABOUT EIGHT CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF A DIHALOALKENE AND A HALOALKYNE, THE HALOGEN OF WHICH HAS AN ATOMIC NUMBER FROM 17 TO 53 INCLUSIVE.
Claim 2
Dependent Claim
54 words
A PROCESS WHICH COMPRISES APPLYING TO BACTERIA AND THEIR HABITAT A BACTERICIDAL AMOUNT OF THE SALT OF HEXAMETHYLENETETRAMINE WITH AN UNSATURATED ALIPHATIC HALOHYDROCARBON OF TWO TO ABOUT EIGHT CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF A DIHALOALKENE AND A HALOALKYNE, THE HALOGEN OF WHICH HAS AN ATOMIC NUMBER FROM 17 TO 53 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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |