Patent US3729329A successfully refreshed from Google Patents.
US3729329A
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Nonaqueous lubricant-binder system for refractory ramming mixes
Assignee: Dresser Industries Inc
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Filing: 1971-07-09
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Granted: 1973-04-24
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Expires: 1991-07-09
Abstract
Abstract A NONAQUEOUS LUBRICATING-BOND SYSTEM FOR REFRACTORIES, ESPECIALLY BASIC REFRACTORIES, OF INCREASED STORAGE LIFE, SAID SYSTEM INCLUDING A LUBRICATING OIL IN COMBINATION WITH A METALLIC STEARATE.
Inventors
- 👤 M Morris
- 👤 G Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:29
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C04; C04B; C04B35/00; C04B35/01; C04B35/013; C04B35/03; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/6325; C04B35/66; C21B; C21B7/00; C21B7/12; C21B7/125; C04B2111/00; C04B2111/00034; C04B2111/00086; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3205; C04B2235/3206
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |