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US2987519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-alkyl-4, 4-bis (hydroxymethyl)-oxazolidines and process for the preparation thereof
Assignee: STWB Inc
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Filing: 1959-11-09
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Granted: 1961-06-06
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Bernard L Zenitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:06
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/04; C07D263/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |