US3300515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized bis- and tris-(beta-sulfatoalkyl) sulfonium inner salts
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1963-10-31
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Granted: 1967-01-24
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Baird Ida
- 👤 Parkinson Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:27
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/36; C07C; C07C381/00; C07C381/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AQUEOUS SOLUTIONS OF SUOPHONIUM INNER SALTS OF THE FORMULA
Claim 2
Dependent Claim
9 words
AQUEOUS SOLUTIONS OF SUOPHONIUM INNER SALTS OF THE FORMULA
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |