US3256115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbiologically stable, cold water dispersable gelatinized starchy flour and process for the preparation thereof
Assignee: NL Industries Inc
•
Filing: 1963-04-10
•
Granted: 1966-06-14
•
Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Robert O Stearns
- 👤 Donald J Weintritt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:28
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/16; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/035; Y; Y10; Y10S; Y10S426/00; Y10S426/801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A MICROBIOLOGICALLY STABLE, COLD WATER DISPERSIBLE GELATINIZED STARCHY FLOUR CONSISTING ESSENTIALLY OF A STARCHY FLOUR TOGETHER WITH FROM 1% TO 5% BY WEIGHT OF PARAFORMALDEHYDE AND FROM 1% TO 5% BY WEIGHT OF A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
40 words
A MICROBIOLOGICALLY STABLE, COLD WATER DISPERSIBLE GELATINIZED STARCHY FLOUR CONSISTING ESSENTIALLY OF A STARCHY FLOUR TOGETHER WITH FROM 1% TO 5% BY WEIGHT OF PARAFORMALDEHYDE AND FROM 1% TO 5% BY WEIGHT OF A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2177658A
Cited
US2400820A
Cited
US2417307A
Cited
US2900335A
Cited
US2974069A
Cited
US2908597A
Cited
US3090994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |