Patent US3377407A successfully refreshed from Google Patents.
US3377407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing of unsaturated polyester resins
Assignee: US Filter Wallace and Tiernan Inc
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Filing: 1967-04-17
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Granted: 1968-04-09
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Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Donald M Kressin
- 👤 Jr Solomon C Westbrook
- 👤 Orville L Mageli
- 👤 James R Kolczynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:16
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3222294A
Cited
DE1128135B
Cited
US3149126A
Cited
US3151170A
Cited
DE1164086B
Cited
US3333021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |