US2712533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp basing cement containing sodium silicate-magnesium oxide bonding mixture
Assignee: Hexion Inc
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Filing: 1950-10-23
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Granted: 1955-07-05
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Expires: 1970-10-23
Abstract
No abstract record available.
Inventors
- 👤 James S Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:08
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/12; C04B26/122; C04B28/00; C04B28/24; C04B28/26; C08K3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A DUPLEX CEMENT CONSISTING ESSENTIALLY, IN COMBINATION, OF A PHENOL-FORMALDEHYDE RESIN HAVING A DISPERSED THEREIN A SODIUM SILICATE AND MAGNESIUM OXIDE.
Claim 2
Dependent Claim
21 words
A DUPLEX CEMENT CONSISTING ESSENTIALLY, IN COMBINATION, OF A PHENOL-FORMALDEHYDE RESIN HAVING A DISPERSED THEREIN A SODIUM SILICATE AND MAGNESIUM OXIDE.
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) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |