Patent US3402134A successfully refreshed from Google Patents.
US3402134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tri and tetra mercapto compounds as cross-link control agents for polysulfide elastomers
Assignee: ATK Launch Systems LLC
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Filing: 1964-04-27
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Granted: 1968-09-17
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Morris B Berenbaum
- 👤 Julian R Panek
- 👤 Louis Citarel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:37
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/0231; C08K; C08K5/00; C08K5/36; C08K5/37
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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |