Patent US3300916A successfully refreshed from Google Patents.
US3300916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated concrete tanks and structures
Assignee: Individual
•
Filing: 1963-11-14
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Granted: 1967-01-31
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Expires: 1983-11-14
Abstract
No abstract record available.
Inventors
- 👤 Pritzker David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:19
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PREFABRICATED TANK AND THE LIKE HAVING A CONTINUOUS SIDE WALL AND A FOOTING SUPPORTING SAID WALL; SAID SIDE WALL COMPRISING A SUCCESSION OF LIKE PRECAST COMPONENTS ARRANGED UPRIGHT UPON SAID FOOTING IN EDGE TO EDGE RELATIONSHIP; EACH OF SAID COMPONENTS BEING OF SHALLOW U-SHAPE IN CROSS-SECTION WITH ITS BASEWALL TRANSVERSELY ARCHED AND ITS OPPOSITE SIDE EDGE PORTIONS FORMING LEGS EXTENDING IN SUBSTANTIALLY PARALLEL RELATIONSHIP AWAY FROM THE BASEWALL; THE JOINT BETWEEN ADJACENT EDGE PORTIONS OF ADJACENT COMPONENTS BEING SEALED BY PLASTIC STRIPS INTERPOSED BETWEEN THEM AND THERE BEING TIE BOLTS EXTENDED THROUGH AND JOINING SAID ADJACENT LEG PORTIONS OF ADJACENT COMPONENTS TO RETAIN THE INTEGRITY OF THE JOINT AND UNIFY THE JOINED COMPONENTS, SAID JOINED LEG PORTIONS PROVIDING REINFORCING POSTS; AND A ROOF STRUCTURE COMPOSED OF A
Claim 2
Dependent Claim
129 words
IN A PREFABRICATED TANK AND THE LIKE HAVING A CONTINUOUS SIDE WALL AND A FOOTING SUPPORTING SAID WALL; SAID SIDE WALL COMPRISING A SUCCESSION OF LIKE PRECAST COMPONENTS ARRANGED UPRIGHT UPON SAID FOOTING IN EDGE TO EDGE RELATIONSHIP; EACH OF SAID COMPONENTS BEING OF SHALLOW U-SHAPE IN CROSS-SECTION WITH ITS BASEWALL TRANSVERSELY ARCHED AND ITS OPPOSITE SIDE EDGE PORTIONS FORMING LEGS EXTENDING IN SUBSTANTIALLY PARALLEL RELATIONSHIP AWAY FROM THE BASEWALL; THE JOINT BETWEEN ADJACENT EDGE PORTIONS OF ADJACENT COMPONENTS BEING SEALED BY PLASTIC STRIPS INTERPOSED BETWEEN THEM AND THERE BEING TIE BOLTS EXTENDED THROUGH AND JOINING SAID ADJACENT LEG PORTIONS OF ADJACENT COMPONENTS TO RETAIN THE INTEGRITY OF THE JOINT AND UNIFY THE JOINED COMPONENTS, SAID JOINED LEG PORTIONS PROVIDING REINFORCING POSTS; AND A ROOF STRUCTURE COMPOSED OF A
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |