US2690100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing fire-resistant inorganic fiber insulation
Assignee: Armstrong World Industries Inc
•
Filing: 1950-06-24
•
Granted: 1954-09-28
•
Expires: 1970-06-24
Abstract
No abstract record available.
Inventors
- 👤 Alan R Mcgarvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:22
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/12; C04B26/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A METHOD OF PRODUCING FIRE-RESISTANT INORGANIC FIBER INSULATION, THE STEPS COMPRISING: APPLYING TO A MASS OF INORGANIC FIBERS A PHENOLFORMALDEHYDE RESIN AND A PHOSPHATE FIREPROOFING AGENT SELECTED FROM THE GROUP CONSISTING OF MONOCALCIUM PHOSPHATE, TRI-ALUMINUM PHOSPHATE, MAGNESIUM AMMONIUM PHOSPHATE, AND MIXTURES THEREOF, AND CURING SAID RESIN ON SAID FIBERS IN THE PRESENCE OF SAID PHOSPHATE FIREPROOFING AGENT AT A TEMPERATURE ABOVE 325* F.
Claim 2
Dependent Claim
64 words
IN A METHOD OF PRODUCING FIRE-RESISTANT INORGANIC FIBER INSULATION, THE STEPS COMPRISING: APPLYING TO A MASS OF INORGANIC FIBERS A PHENOLFORMALDEHYDE RESIN AND A PHOSPHATE FIREPROOFING AGENT SELECTED FROM THE GROUP CONSISTING OF MONOCALCIUM PHOSPHATE, TRI-ALUMINUM PHOSPHATE, MAGNESIUM AMMONIUM PHOSPHATE, AND MIXTURES THEREOF, AND CURING SAID RESIN ON SAID FIBERS IN THE PRESENCE OF SAID PHOSPHATE FIREPROOFING AGENT AT A TEMPERATURE ABOVE 325* F.
References Cited (Backward Citations)
US1310841A
Cited
US1577890A
Cited
US1160362A
Cited
US2034522A
Cited
US2222198A
Cited
US2250483A
Cited
US2325302A
Cited
US2338602A
Cited
US2378715A
Cited
US2378714A
Cited
US2481486A
Cited
US2439667A
Cited
US2444347A
Cited
US2504744A
Cited
US2422730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |