US3455950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'-bis-imides of polyhalosubstituted polyhydropolycyclicdicarboxylic acids
Assignee: Universal Oil Products Co
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Filing: 1967-07-28
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Granted: 1969-07-15
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Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 Henryk A Cyba
- 👤 Allen K Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:00
CPC Classifications
C; C07; C07C; C07C243/00; C07D; C07D209/00; C07D209/56; C07D209/58; C07D209/70; C07D209/72; C07D209/76; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417; Y; Y10; Y10S; Y10S521/00; Y10S521/906
Claims Analysis
Total Claims: 0
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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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |