US3632785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming shell molds
Assignee: GP Chemicals Equity LLC
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Filing: 1969-02-19
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Granted: 1972-01-04
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Expires: 1989-02-19
Abstract
Abstract PEELBACK IN THE FORMATION OF SHELL MOLDS CAN BE MINIMIZED BY THE INCLUSION IN THE RESIN OF A WATER-SOLUBLE POLY-FLAVONOID.
Inventors
- 👤 Leopold F Bornstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:14
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; B22C1/2246; B22C1/2253; B22C1/2293; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L101/00; C08L101/02; C08L101/06
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |