US2857288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method to produce adhesive
Assignee: Individual
•
Filing: 1955-05-10
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Granted: 1958-10-21
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Expires: 1975-05-10
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Philipp
- 👤 Pelikan Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:55
CPC Classifications
C; C09; C09J; C09J197/00; C09J197/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF PREPARING AN ADHESIVE OR CEMENT FOR FLOOR COVERINGS, COMPRISING MIXING A LIGNOSULPHONATE WITH HEXAVALENT CHROMIUM COMPOUNDS AND WATER AND A WATER BINDING ADDITION TO ABSORB A PART OF THE WATER AS WATER OF CRYSTALLIZATION AND TO HOLD A PART OF THE WATER IN EXCESS, AND ADDING TO THE MIXTURE AN AQUEOUS-GLYCERINE SUBSTANCE AND IMMEDIATELY APPLYING THE ADHESIVE.
Claim 2
Independent Claim
60 words
A METHOD OF PREPARING AN ADHESIVE OR CEMENT FOR FLOOR COVERINGS, COMPRISING MIXING A LIGNOSULPHONATE WITH HEXAVALENT CHROMIUM COMPOUNDS AND WATER AND A WATER BINDING ADDITION TO ABSORB A PART OF THE WATER AS WATER OF CRYSTALLIZATION AND TO HOLD A PART OF THE WATER IN EXCESS, AND ADDING TO THE MIXTURE AN AQUEOUS-GLYCERINE SUBSTANCE AND IMMEDIATELY APPLYING THE ADHESIVE.
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) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |