US3090160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car roof hatch
Assignee: Pullman-Standard Car Manufacturing Co
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Filing: 1956-02-20
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Granted: 1963-05-21
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Expires: 1976-02-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Shaver
- 👤 Arthur H Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:01
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/12; B61D17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A ROOF HATCH CONSTRUCTION FOR A VEHICLE INCLUDING A ROOF SHEET HAVING A HATCH OPENING, AN EMBOSSMENT FORMED IN THE MARGIN OF THE ROOF SHEET SURROUNDING THE OPENING COMPRISING AN UPWARDLY DIRECTED OUTER PORTION INWARDLY SLOPING AT AN OBTUSE ANGLE TO THE BODY OF THE SHEET AND AN UPWARDLY DIRECTED INNER PORTION INWARDLY SLOPING AT AN OBTUSE ANGLE TO THE OUTER PORTION, AND A HATCH FRAME HAVING A VERTICAL SIDE WALL TERMINATING AT ITS BOTTOM IN A MARGINAL FLANGE EXTENDING FROM SAID SIDE WALL AT AN ANGLE SUBSTANTIALLY CORRESPONDING TO THE ANGLE MADE BY THE INNER PORTION OF THE EMBOSSMENT WITH THE BODY OF THE SHEET, SAID MARGINAL FLANGE BEING SEATED ON THE UPPER SURFACE OF SAID INNER PORTION OF THE EMBOSSMENT AND BEING WELDED THERETO.
Claim 2
Dependent Claim
126 words
A ROOF HATCH CONSTRUCTION FOR A VEHICLE INCLUDING A ROOF SHEET HAVING A HATCH OPENING, AN EMBOSSMENT FORMED IN THE MARGIN OF THE ROOF SHEET SURROUNDING THE OPENING COMPRISING AN UPWARDLY DIRECTED OUTER PORTION INWARDLY SLOPING AT AN OBTUSE ANGLE TO THE BODY OF THE SHEET AND AN UPWARDLY DIRECTED INNER PORTION INWARDLY SLOPING AT AN OBTUSE ANGLE TO THE OUTER PORTION, AND A HATCH FRAME HAVING A VERTICAL SIDE WALL TERMINATING AT ITS BOTTOM IN A MARGINAL FLANGE EXTENDING FROM SAID SIDE WALL AT AN ANGLE SUBSTANTIALLY CORRESPONDING TO THE ANGLE MADE BY THE INNER PORTION OF THE EMBOSSMENT WITH THE BODY OF THE SHEET, SAID MARGINAL FLANGE BEING SEATED ON THE UPPER SURFACE OF SAID INNER PORTION OF THE EMBOSSMENT AND BEING WELDED THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |