US2624681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope seam gum and a method of preparing it
Assignee: Stein Hall and Co Inc
•
Filing: 1949-09-21
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Granted: 1953-01-06
•
Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Rapp Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:19
CPC Classifications
C; C09; C09J; C09J103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A DRY BLEND CONSISTING OF ABOUT 48.75 PARTS BY WEIGHT OF A MODIFIED STARCH WHICH HAS A WATER-SOLUBLES CONTENT OF FROM ABOUT 3 TO 5% AND GIVES A 25 TO 27 GRAM DISPERSION IN 100 CC, OF WATER HAVING A 50 CC. STANDARD PIPETTE VISCOSITY IN THE RANGE OF 35 TO 40 SECONDS WHEN HEATED TO 85* C., ABOUT 16.25 PARTS BY WEIGHT OF UREA, ABOUT 32.46 PARTS BY WEIGHT OF SUCROSE, ABOUT 0.73 PART BY WEIGHT OF MONOSODIUM PHOSPHATE, ABOUT 1.2 PARTS BY WEIGHT OF DISODIUM PHOSPHATE, ABOUT 0.33 PARTS BY WEIGHT OF SODIUM BISULFIDE, AND ABOUT 0.28 PART BY WEIGHT OF TRIBUTYL PHOSPHATE.
Claim 2
Dependent Claim
105 words
A DRY BLEND CONSISTING OF ABOUT 48.75 PARTS BY WEIGHT OF A MODIFIED STARCH WHICH HAS A WATER-SOLUBLES CONTENT OF FROM ABOUT 3 TO 5% AND GIVES A 25 TO 27 GRAM DISPERSION IN 100 CC, OF WATER HAVING A 50 CC. STANDARD PIPETTE VISCOSITY IN THE RANGE OF 35 TO 40 SECONDS WHEN HEATED TO 85* C., ABOUT 16.25 PARTS BY WEIGHT OF UREA, ABOUT 32.46 PARTS BY WEIGHT OF SUCROSE, ABOUT 0.73 PART BY WEIGHT OF MONOSODIUM PHOSPHATE, ABOUT 1.2 PARTS BY WEIGHT OF DISODIUM PHOSPHATE, ABOUT 0.33 PARTS BY WEIGHT OF SODIUM BISULFIDE, AND ABOUT 0.28 PART BY WEIGHT OF TRIBUTYL PHOSPHATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |