Patent US3203971A successfully refreshed from Google Patents.
US3203971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycol borate amine salts
Assignee: Standard Oil Co
•
Filing: 1963-05-28
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Granted: 1965-08-31
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Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Gray Richard J De
- 👤 Lawrence N Killian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:02
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; C10L1/303; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 0
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |