US2835539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous bearing track construction
Assignee: Polymer Processes Inc
•
Filing: 1953-11-23
•
Granted: 1958-05-20
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Winthrop B Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; A; A47; A47B; A47B88/00; A47B88/40; A47B88/483
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CONTINUOUS BEARING TRACK ASSEMBLY COMPRISING A UNIFORMLY THIN, LONGITUDINALLY EXTENDING SYNTHETIC LINEAR CONDENSATION POLYAMIDE STRIP FORMED WITH A TRANSVERSE CONTOUR HAVING ONE SURFACE CONFORMING TO A REQUIRED BEARING SURFACE, AND A UNIFORMLY THIN METAL TRACK MEMBER FORMED TO ENGAGE AND SUPPORT THE OPPOSITE SURFACE OF SAID STRIP, SAID TRACK MEMBER BEING FORMED TO EXTEND AROUND AND LOOSELY OVER EACH MARGINAL SIDE EDGE OF SAID STRIP TO LOCATE IT TRANSVELY FREE TO EXPAND AND CONTRACT LONGITUDINALLY RELATIVE TO SAID METAL TRACK MEMBER AND A LOCAL CONNECTION BETWEEN SAID STRIP AND SAID TRACK MEMA LOCAL CONNECTION BETWEEN SAID STRIP MEMBER TO LIMIT RELATIVE LONGITUDINAL MOVEMENT BETWEEN THE ENTIRE STRIP AND THE ENTIRE TRACK.
Claim 2
Dependent Claim
112 words
A CONTINUOUS BEARING TRACK ASSEMBLY COMPRISING A UNIFORMLY THIN, LONGITUDINALLY EXTENDING SYNTHETIC LINEAR CONDENSATION POLYAMIDE STRIP FORMED WITH A TRANSVERSE CONTOUR HAVING ONE SURFACE CONFORMING TO A REQUIRED BEARING SURFACE, AND A UNIFORMLY THIN METAL TRACK MEMBER FORMED TO ENGAGE AND SUPPORT THE OPPOSITE SURFACE OF SAID STRIP, SAID TRACK MEMBER BEING FORMED TO EXTEND AROUND AND LOOSELY OVER EACH MARGINAL SIDE EDGE OF SAID STRIP TO LOCATE IT TRANSVELY FREE TO EXPAND AND CONTRACT LONGITUDINALLY RELATIVE TO SAID METAL TRACK MEMBER AND A LOCAL CONNECTION BETWEEN SAID STRIP AND SAID TRACK MEMA LOCAL CONNECTION BETWEEN SAID STRIP MEMBER TO LIMIT RELATIVE LONGITUDINAL MOVEMENT BETWEEN THE ENTIRE STRIP AND THE ENTIRE TRACK.
References Cited (Backward Citations)
US1907117A
Cited
US2041004A
Cited
US2072899A
Cited
US2068563A
Cited
US2399204A
Cited
US2504510A
Cited
US2666677A
Cited
US2675283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |