US2575687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat, flame, and fire resistant sealants
Assignee: Lockheed Martin Corp
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Filing: 1948-11-19
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Granted: 1951-11-20
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Expires: 1968-11-19
Abstract
No abstract record available.
Inventors
- 👤 Simon Eli
- 👤 Frank W Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/34; C08; C08K; C08K3/00; C08K3/34; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24; C08G77/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A HEAT, FLAME AND FIRE RESISTANT SEALANT COMPRISING ON AN APPROXIMAE PERCENTAGE BY WEIGHT BASIC, 32 PERCENT POLYMR METHYL ARYL SILOXANE, 8 PERCENT POLYMERIC MONOMETHYL SILSESQUIOZANE, 40 PERCENT REFRACTORY SILICATE FILLER, AND 20 PRCENT CYCLOPENTANE.
Claim 2
Dependent Claim
35 words
A HEAT, FLAME AND FIRE RESISTANT SEALANT COMPRISING ON AN APPROXIMAE PERCENTAGE BY WEIGHT BASIC, 32 PERCENT POLYMR METHYL ARYL SILOXANE, 8 PERCENT POLYMERIC MONOMETHYL SILSESQUIOZANE, 40 PERCENT REFRACTORY SILICATE FILLER, AND 20 PRCENT CYCLOPENTANE.
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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |