US3334593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track grading method and arrangement
Assignee: Individual
•
Filing: 1966-06-16
•
Granted: 1967-08-08
•
Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 Plasser Franz
- 👤 Theurer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:45
CPC Classifications
E; E01; E01B; E01B35/00; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/17; E01B2203/00; E01B2203/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF GRADING A TRACK RAIL IN REALTION TO A REFERENCE LINE EXTENDING VERTICALLY ABOVE THE TRACK RAIL, COMPRISING THE STEPS OF (1) ESTABLISHING A FIRST REFERENCE LINE FROM A PREVIOUSLY GRADED TRACK SECTION TO A TRACK SECTION TO BE GRADED AND EXTENDING WITH A FRONT END TO A FRONT STATION, (2) ESTABLISHING A SECOND AND LONGER REFERENCE LINE IN SAID TRACK SECTION TO BE GRADED AND EXTENDING WITH A FRONT END TO A STATIONARY OBSERVATION STATION REMOTE FROM SAID FRONT STATION, (3) MOVING THE FRONT STATION WITH THE FRONT END OF THE FIRST REFERENCE LINE TOWARDS THE STATIONARY OBSERVATION STATION, (A) THE PREVIOUSLY GRADED TRACK SECTION AND THE OBSERVATION STATION DETERMINING A PLANE, AND (4) VERTICALLY MOVING AT LEAST ONE OF SAID FRONT ENDS OF THE REFERENCE LINES VERTICALLY UPWARDLY WHEN THE FRONT STATION HAS REACHED A HIGH POINT IN SAID TRACK SECTION TO BE GRADED, WHICH IS ABOVE SAID PLANE.
Claim 2
Independent Claim
153 words
A METHOD OF GRADING A TRACK RAIL IN REALTION TO A REFERENCE LINE EXTENDING VERTICALLY ABOVE THE TRACK RAIL, COMPRISING THE STEPS OF (1) ESTABLISHING A FIRST REFERENCE LINE FROM A PREVIOUSLY GRADED TRACK SECTION TO A TRACK SECTION TO BE GRADED AND EXTENDING WITH A FRONT END TO A FRONT STATION, (2) ESTABLISHING A SECOND AND LONGER REFERENCE LINE IN SAID TRACK SECTION TO BE GRADED AND EXTENDING WITH A FRONT END TO A STATIONARY OBSERVATION STATION REMOTE FROM SAID FRONT STATION, (3) MOVING THE FRONT STATION WITH THE FRONT END OF THE FIRST REFERENCE LINE TOWARDS THE STATIONARY OBSERVATION STATION, (A) THE PREVIOUSLY GRADED TRACK SECTION AND THE OBSERVATION STATION DETERMINING A PLANE, AND (4) VERTICALLY MOVING AT LEAST ONE OF SAID FRONT ENDS OF THE REFERENCE LINES VERTICALLY UPWARDLY WHEN THE FRONT STATION HAS REACHED A HIGH POINT IN SAID TRACK SECTION TO BE GRADED, WHICH IS ABOVE SAID PLANE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |