Patent US3235558A successfully refreshed from Google Patents.
US3235558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex salts of certain triazoles and tetrazoles
Assignee: Dow Chemical Co
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Filing: 1964-09-21
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Granted: 1966-02-15
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Hugh T Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:46
CPC Classifications
C; C07; C07D; C07D257/00; C07D257/02; C07D257/04; C05; C05G; C05G3/00; C05G3/90; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/14; C07D257/06; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21; Y10; Y10S; Y10S71/00; Y10S71/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
MONO-SALT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF HEXAFLUORARSENIC ACID AND HEXAFLUOROPHOSPHORIC ACID AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF 3-AMINO-S-TRIAZOLE, TETRAZOLE, AND 5-AMINOTETRAZOLE.
Claim 2
Dependent Claim
28 words
MONO-SALT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF HEXAFLUORARSENIC ACID AND HEXAFLUOROPHOSPHORIC ACID AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF 3-AMINO-S-TRIAZOLE, TETRAZOLE, AND 5-AMINOTETRAZOLE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |