Patent US3092537A successfully refreshed from Google Patents.
US3092537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flameproofing of organic materials
Assignee: Consolidated Paper Corp Ltd
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Filing: 1959-06-05
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Granted: 1963-06-04
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Theodorus G Brandts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/06; C09K21/08; B; B27; B27K; B27K2240/00; B27K2240/30; B27K3/00; B27K3/02; B27K3/0271; B27K3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE PROCESS OF FLAMEPROOFING ORGANIC MATERIALS OF A FIBROUS NATURE CONTAINING PHENOLIC SUBSTANCES INCLUDING AT LEAST ONE OF THE SUBSTANCES FROM THE CLASS CONSISTING OF LIGNINS, TANNINS AND PHLOBAPHENES, COMPRISING THE STEP OF HALOGENATING SAID MATERIALS WITH, A GAS CONSISTING ESSENTIALLY OF A HALOGEN AT A SUFFICIENT PRESSURE TO CAUSE SAID GASEOUS HALOGEN TO ENTER SAID MATERIAL AND FORM HALOGEN SUBSTITUTED PHENOLIC SUBSTANCES THEREIN, AND SUBSEQUENTLY DRYING SAID MATERIALS TO FORM USEFUL FLAMEPROOFED ARTICLES CONTAINING SAID HALOGEN-SUBSTITUTED PHENOLIC SUBSTANCES.
Claim 2
Dependent Claim
79 words
THE PROCESS OF FLAMEPROOFING ORGANIC MATERIALS OF A FIBROUS NATURE CONTAINING PHENOLIC SUBSTANCES INCLUDING AT LEAST ONE OF THE SUBSTANCES FROM THE CLASS CONSISTING OF LIGNINS, TANNINS AND PHLOBAPHENES, COMPRISING THE STEP OF HALOGENATING SAID MATERIALS WITH, A GAS CONSISTING ESSENTIALLY OF A HALOGEN AT A SUFFICIENT PRESSURE TO CAUSE SAID GASEOUS HALOGEN TO ENTER SAID MATERIAL AND FORM HALOGEN SUBSTITUTED PHENOLIC SUBSTANCES THEREIN, AND SUBSEQUENTLY DRYING SAID MATERIALS TO FORM USEFUL FLAMEPROOFED ARTICLES CONTAINING SAID HALOGEN-SUBSTITUTED PHENOLIC SUBSTANCES.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |