US3037931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal of waste starch-containing residues
Assignee: Individual
•
Filing: 1957-06-12
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Granted: 1962-06-05
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Gayhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:26
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/10; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
IN THE MANUFACTURE OF CURRUGATED BOARD AND BOXES BY METHODS INVOLVING THE USE OF STARCH COMPOSITIONS FOR ADHESIVE PURPOSES WHEREIN SLUDGELIKE WASTE STARCH RESIDUES ARE OBTAINED THAT ARE DIFICULT TO DISPOSE OF IN THE NORMAL SEWAGE SYSTEM OF AN INDUSTRIAL PLANT, THE IMPROVEMENT COMPRISING THE STEP OF TREATING SUCH WASTE STARCH RESIDUES WITH A SOLUBILIZING AND SUSPENDING TREATING AGENT COMPRISING CYCLOHEXYLAMINE, AN ALKYL PHENYL POLYETHYLENE GLYCOL ETHER, AND TETRAKIS (2-HYDROXY-PROPYL) ETHYLENE DIAMINE WHICH ARE PRESENT IN THE TREATING AGENT IN THE RESPECTIVE WEIGHT RATIOS OF ABOUT 30,000 TO 40,000:1:1.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |