Patent US2888360A successfully refreshed from Google Patents.
US2888360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joints between cellulated glass and mortar-like materials
Assignee: PPG Industries Inc
•
Filing: 1955-12-09
•
Granted: 1959-05-26
•
Expires: 1975-12-09
Abstract
No abstract record available.
Inventors
- 👤 Sherts James Hervey
- 👤 Robert W Moorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:26
CPC Classifications
B; B32; B32B; B32B27/00; C; C03; C03C; C03C27/00; C03C27/06; C03C27/10; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249956; Y10T428/249958; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A METHOD OF SECURING A MORTAR MATERIAL WHICH IS ADAPTED TO SET TO A HARD, BRITTLE STATE TO CELLULAR GLASS, THE MORTAR MATERIAL IN SETTING, BEING SUBJECT TO SHRINKAGE WITH RESPECT TO THE GLASS, THE STEPS WHICH COMPRISE SPREADING UPON SAID CELLULAR GLASS A LAYER OF A MIXTURE OF TWO COMPONENTS (A) AND (B) WHICH ARE ADAPTED TO REACT TO FORM A FOAM OF POLYURETHANE RESIN, (A) BEING A MIXTURE OF AN ALCOHOL CONTAINING A PLURALITY OF HYDROXYLS AND A MATERIAL OF A CLASS CONSISTING OF WATER AND A HYDRATED SALT ADAPTED TO DECOMPOSE IN THE MIXTURE TO SUPPLY WATER AND (B) BEING AN ORGANIC MATERIAL CONTAINING A PLURALITY OF ISOCYANATE GROUPS PER MOLECULE, AT LEAST ONE OF SAID COMPONENTS CONTAINING A CATALYST OF INTERPOLYMERIZATION OF THE TWO COMPONENTS, FOAMING AND CURING THE MIXTURE, SLICING AWAY THE SURFACE PORTION OF THE FOAMED LAYER, APPLYING SAID MORTAR TO THE SLICED AWAY SURFACE OF THE FOAMED LAYER TO FILL THE CELLS AND ALLOWING THE MORTAR TO HARDEN.
Claim 2
Dependent Claim
166 words
IN A METHOD OF SECURING A MORTAR MATERIAL WHICH IS ADAPTED TO SET TO A HARD, BRITTLE STATE TO CELLULAR GLASS, THE MORTAR MATERIAL IN SETTING, BEING SUBJECT TO SHRINKAGE WITH RESPECT TO THE GLASS, THE STEPS WHICH COMPRISE SPREADING UPON SAID CELLULAR GLASS A LAYER OF A MIXTURE OF TWO COMPONENTS (A) AND (B) WHICH ARE ADAPTED TO REACT TO FORM A FOAM OF POLYURETHANE RESIN, (A) BEING A MIXTURE OF AN ALCOHOL CONTAINING A PLURALITY OF HYDROXYLS AND A MATERIAL OF A CLASS CONSISTING OF WATER AND A HYDRATED SALT ADAPTED TO DECOMPOSE IN THE MIXTURE TO SUPPLY WATER AND (B) BEING AN ORGANIC MATERIAL CONTAINING A PLURALITY OF ISOCYANATE GROUPS PER MOLECULE, AT LEAST ONE OF SAID COMPONENTS CONTAINING A CATALYST OF INTERPOLYMERIZATION OF THE TWO COMPONENTS, FOAMING AND CURING THE MIXTURE, SLICING AWAY THE SURFACE PORTION OF THE FOAMED LAYER, APPLYING SAID MORTAR TO THE SLICED AWAY SURFACE OF THE FOAMED LAYER TO FILL THE CELLS AND ALLOWING THE MORTAR TO HARDEN.
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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |