US2899324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nhxno
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:51
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF MANUFACTURING IMPROVED CLAY PRODUCTS WHICH COMPRISES ADDING TO THE CLAY MIX FROM WHICH THE CLAY PRODUCTS ARE FORMED AN ADDITIVE CONSISTING ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP COSISTING OF (1) FROM .001% TO 3% BY WEIGHT (BASED ON DRY CLAY OF HEXAMETHYLENETETRAMINE AND (2) AND ADDITIVE COMBINATION CONSISTING OF (A) FROM .001% TO 1% BY WEIGHT (BASED ON DRY CLAY) OF HEXAMETHYLENETETRAMINE AND (B) FROM .005% TO 2% BY WEIGHT (BASED ON DRY CLAY) OF A MEMBER OF THE GROUP CONSISTING OF AMMONIUM NITRATE, AMMONIUM SULFATE, AMMONIUM CHLORIDE, AMMONIUM PHOSPHATE AND MIXTURES THEROF; FORMING CLAY PRODUCTS FROM SUCH ADMIXTURE; AND FIRING THE CLAY PRODUCTS.
Claim 2
Independent Claim
109 words
THE METHOD OF MANUFACTURING IMPROVED CLAY PRODUCTS WHICH COMPRISES ADDING TO THE CLAY MIX FROM WHICH THE CLAY PRODUCTS ARE FORMED AN ADDITIVE CONSISTING ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP COSISTING OF (1) FROM .001% TO 3% BY WEIGHT (BASED ON DRY CLAY OF HEXAMETHYLENETETRAMINE AND (2) AND ADDITIVE COMBINATION CONSISTING OF (A) FROM .001% TO 1% BY WEIGHT (BASED ON DRY CLAY) OF HEXAMETHYLENETETRAMINE AND (B) FROM .005% TO 2% BY WEIGHT (BASED ON DRY CLAY) OF A MEMBER OF THE GROUP CONSISTING OF AMMONIUM NITRATE, AMMONIUM SULFATE, AMMONIUM CHLORIDE, AMMONIUM PHOSPHATE AND MIXTURES THEROF; FORMING CLAY PRODUCTS FROM SUCH ADMIXTURE; AND FIRING THE CLAY PRODUCTS.
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) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |