US3294357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formwork for concrete
Assignee: Acrow Engineers Ltd
•
Filing: 1964-10-13
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Granted: 1966-12-27
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Tooley Jack Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:17
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/38; E04G11/48; E04G11/50; E04G11/52; E04G25/00; E04G25/04; E04G25/06; E04G25/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A SYSTEM OF SLAB FORMWORK COMPRISING A NUMBER OF PROPS, A NUMBER OF BEAMS SUPPORTED DIRECTLY BY THE PROPS, A NUMBER OF PANELS, AND MEANS PIVOTALLY MOUNTED ON THE WEBS OF THE BEAMS AND SUPPORTING SAID PANELS IN THE WORKING POSITION WITH THEIR CASTING FACES LEVEL WITH THE TOP SURFACES OF THE BEAMS AND FORMING A CONTINUOUS CASTING SURFACE THEREWITH, SAID MEANS BEING SWINGABLE TO A POSITION IN WHICH THE PANELS CAN BE STRUCK WITHOUT STRIKING THE BEAMS.
Claim 2
Independent Claim
78 words
A SYSTEM OF SLAB FORMWORK COMPRISING A NUMBER OF PROPS, A NUMBER OF BEAMS SUPPORTED DIRECTLY BY THE PROPS, A NUMBER OF PANELS, AND MEANS PIVOTALLY MOUNTED ON THE WEBS OF THE BEAMS AND SUPPORTING SAID PANELS IN THE WORKING POSITION WITH THEIR CASTING FACES LEVEL WITH THE TOP SURFACES OF THE BEAMS AND FORMING A CONTINUOUS CASTING SURFACE THEREWITH, SAID MEANS BEING SWINGABLE TO A POSITION IN WHICH THE PANELS CAN BE STRUCK WITHOUT STRIKING THE BEAMS.
References Cited (Backward Citations)
US540851A
Cited
US3130470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |