US3139464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1960-07-22
•
Granted: 1964-06-30
•
Expires: 1980-07-22
Abstract
No abstract record available.
Inventors
- 👤 Walter W Bird
- 👤 Peter A Strobel
- 👤 Paul I Rongved
- 👤 David P Zamore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/04; E04G11/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD FOR BUILDING CONCRETE STRUCTURES COMPRISING SHAPING AN ENVELOPE FOR INFLATION TO A SHAPE COMPLEMENTING THE PRESCRIBED SHAPE OF THE STRUCTURE TO BE BUILT, ARRANGING A PLURALITY OF CURVED TRUSSES AT INTERVALS ALONG SAID ENVELOPE, INFLATING SAID ENVELOPE TO CAUSE IT TO BEAR AGAINST SAID TRUSSES AND TO BILLOW THEREBETWEEN, THEREBY FORMING VALLEYS AT THE REGIONS OF SAID TRUSSES, PLACING CONCRETE IN SAID VALLEYS TO FORM RIBS ENCLOSING SAID TRUSSES AS REINFORCEMENT DEVICES THEREIN, AND THEN SUBSEQUENT TO SETTING OF THE CONCRETE OF SAID RIBS PLACING CONCRETE ON SAID ENVELOPE INTERMEDIATELY OF SAID RIBS TO PROVIDE A CONTINUOUS SHELL FORM CONCRETE STRUCTURE.
Claim 2
Independent Claim
103 words
THE METHOD FOR BUILDING CONCRETE STRUCTURES COMPRISING SHAPING AN ENVELOPE FOR INFLATION TO A SHAPE COMPLEMENTING THE PRESCRIBED SHAPE OF THE STRUCTURE TO BE BUILT, ARRANGING A PLURALITY OF CURVED TRUSSES AT INTERVALS ALONG SAID ENVELOPE, INFLATING SAID ENVELOPE TO CAUSE IT TO BEAR AGAINST SAID TRUSSES AND TO BILLOW THEREBETWEEN, THEREBY FORMING VALLEYS AT THE REGIONS OF SAID TRUSSES, PLACING CONCRETE IN SAID VALLEYS TO FORM RIBS ENCLOSING SAID TRUSSES AS REINFORCEMENT DEVICES THEREIN, AND THEN SUBSEQUENT TO SETTING OF THE CONCRETE OF SAID RIBS PLACING CONCRETE ON SAID ENVELOPE INTERMEDIATELY OF SAID RIBS TO PROVIDE A CONTINUOUS SHELL FORM CONCRETE STRUCTURE.
References Cited (Backward Citations)
US1964386A
Cited
US2324554A
Cited
US2379636A
Cited
US2308806A
Cited
US2550627A
Cited
US2705360A
Cited
US2892239A
Cited
US2948047A
Cited
US2857648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |