US3233973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for processing material
Assignee: Fuller Co
•
Filing: 1962-03-29
•
Granted: 1966-02-08
•
Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Veo
- 👤 Jr David E Stevens
- 👤 Edward T Mitman
- 👤 Albert H French
- 👤 Curtis A Zimmerman
- 👤 Carl H Bast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
C; C04; C04B; C04B7/00; C04B7/36; C04B7/38; Y; Y10; Y10T; Y10T436/00; Y10T436/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD FOR THE PREPARATION OF PORTLAND CEMENT RAW FEED FROM CEMENT-FORMING RAW MATERIALS HAVING VARIATIONS IN CHEMICAL COMPOSITION AND EASE OF GRINDING COMPRISING SEPARATELY GRINDING MATERIALS HAVING SUCH DIFFERING PROPERTIES EACH TO A PARTICLE SIZE SUITABLE FOR BURNING IN A KILN, ANALYZING EACH OF THE GROUND MATERIALS REGARDING AT LEAST ONE CHEMICAL CONSTITUENT THEREOF, SORTING THE ANALYZED MATERIAL ACCORDING TO PREDETERMINED CLASSIFICATIONS BASED UPON CHEMICAL COMPOSITION, AND SELECTING AND COMBINING MATERIAL FROM SAID CLASSIFICATIONS IN SUCH RELATIVE PROPORTIONS AS TO GIVE A FEED MATERIAL HAVING A PRESELECTED COMPOSITION.
Claim 2
Independent Claim
89 words
A METHOD FOR THE PREPARATION OF PORTLAND CEMENT RAW FEED FROM CEMENT-FORMING RAW MATERIALS HAVING VARIATIONS IN CHEMICAL COMPOSITION AND EASE OF GRINDING COMPRISING SEPARATELY GRINDING MATERIALS HAVING SUCH DIFFERING PROPERTIES EACH TO A PARTICLE SIZE SUITABLE FOR BURNING IN A KILN, ANALYZING EACH OF THE GROUND MATERIALS REGARDING AT LEAST ONE CHEMICAL CONSTITUENT THEREOF, SORTING THE ANALYZED MATERIAL ACCORDING TO PREDETERMINED CLASSIFICATIONS BASED UPON CHEMICAL COMPOSITION, AND SELECTING AND COMBINING MATERIAL FROM SAID CLASSIFICATIONS IN SUCH RELATIVE PROPORTIONS AS TO GIVE A FEED MATERIAL HAVING A PRESELECTED COMPOSITION.
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |