US3372431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparation of structures
Assignee: Dow Chemical Co
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Filing: 1966-01-24
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Granted: 1968-03-12
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Expires: 1986-01-24
Abstract
No abstract record available.
Inventors
- 👤 Fred J Lowes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:05
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/06; E04G11/20; E04B; E04B1/00; E04B1/32; E04B2001/3217; E04B2001/3258; E04B2001/3264; Y; Y10; Y10S; Y10S425/00; Y10S425/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN AN APPARATUS FOR THE GENERATION OF STRUCTURE BY THE INCREMENTAL POSITIONING OF THE BUILDING MATERIAL UTILIZING A POSITIONABLE BUILDING MATERIAL DEPOSITING HEAD THE IMPROVEMENT WHICH COMPRISES MEANS TO ROTATE THE HEAD ABOVE A FIXED AXIS, MEANS TO CONTINUOUSLY POSITION THE HEAD ON A GENERALLY SLLIPTICAL PATH AS THE HEAD ROTATES ABOUT THE AXIS.
Claim 2
Dependent Claim
54 words
IN AN APPARATUS FOR THE GENERATION OF STRUCTURE BY THE INCREMENTAL POSITIONING OF THE BUILDING MATERIAL UTILIZING A POSITIONABLE BUILDING MATERIAL DEPOSITING HEAD THE IMPROVEMENT WHICH COMPRISES MEANS TO ROTATE THE HEAD ABOVE A FIXED AXIS, MEANS TO CONTINUOUSLY POSITION THE HEAD ON A GENERALLY SLLIPTICAL PATH AS THE HEAD ROTATES ABOUT THE AXIS.
References Cited (Backward Citations)
US1126323A
Cited
US1127369A
Cited
US3206899A
Cited
US3120047A
Cited
US3336631A
Cited
US3336632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |