US3276176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic plastic molding form
Assignee: Ingenjorsfirman Orrje and Co AB
•
Filing: 1963-04-23
•
Granted: 1966-10-04
•
Expires: 1983-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jonsson Karl Axel
- 👤 Horwitz Ludvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
E; E04; E04G; E04G15/00; E04G15/06; E04G15/061; E04B; E04B1/00; E04B1/38; E04B1/41; E04B5/00; E04B5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A MOLDING FORM FOR USE IN THE FORMATION OF CONCRETE STRUCTURES, COMPRISING: A SYNTHETIC PLASTIC TUBE HAVING CORRUGATED WALLS, SAID PLASTIC BEING RESISTANT TO CONCRETE AND EARTH, AND INTEGRALLY-FORMED FLANGES, EXTENDING PARALLEL TO THE AXIS OF SAID TUBE AND RADIALLY FROM THE EXTERIOR WALLS OF SAID TUBE, HAVING APERTURES FORMED THEREIN ADAPTED TO RECEIVE WIRES FOR HOLDING SAID FORM IN PLACE DURING CONCRETE FORMATION.
Claim 2
Dependent Claim
64 words
A MOLDING FORM FOR USE IN THE FORMATION OF CONCRETE STRUCTURES, COMPRISING: A SYNTHETIC PLASTIC TUBE HAVING CORRUGATED WALLS, SAID PLASTIC BEING RESISTANT TO CONCRETE AND EARTH, AND INTEGRALLY-FORMED FLANGES, EXTENDING PARALLEL TO THE AXIS OF SAID TUBE AND RADIALLY FROM THE EXTERIOR WALLS OF SAID TUBE, HAVING APERTURES FORMED THEREIN ADAPTED TO RECEIVE WIRES FOR HOLDING SAID FORM IN PLACE DURING CONCRETE FORMATION.
References Cited (Backward Citations)
US995008A
Cited
US1045562A
Cited
US1070807A
Cited
US1210217A
Cited
US1886803A
Cited
US2165905A
Cited
US2381538A
Cited
US2616284A
Cited
US2684518A
Cited
US2728356A
Cited
US2957279A
Cited
US3065576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |