US3128069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Train describer system
Assignee: SPX Technologies Inc
•
Filing: 1959-11-09
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Granted: 1964-04-07
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Clark A Pickell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:11
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A TRAIN DESCRIBER SYSTEM FOR INDICATING AT A REMOTE CONTROL OFFICE THE IDENTITY OF TRAINS OCCUPYING DIFFERENT TRACK SECTIONS OF A STRETCH OF RAILWAY TRACK COMPRISING, TRAIN DESCRIBER STORAGE MEANS AT THE CONTROL OFFICE FOR EACH OF THE TRACK SECTIONS RESPONSIVE TO THE CONDITION OF THE STORAGE MEANS FOR THE NEXT ADJOINING TRACK SECTION, AND MEANS INCLUDING TRACK CIRCUITS FOR THE RESPECTIVE TRACK SECTIONS FOR PERMITTING THE RESPONSE OF SAID STORAGE MEANS FOR EACH TRACK SECTION TO THE CONDITION OF THE STORAGE MEANS FOR THE NEXT ADJOINING TRACK SECTION ONLY PROVIDED THAT THE ASSOCIATED TRACK SECTION IS UNOCCUPIED BY A TRAIN, WHEREBY TRAIN DESCRIPTION FOR THE STORAGES ASSOCIATED WITH SEVERAL TRACK SECTIONS ARE CONTEMPORANEOUSLY ESTABLISHED FOR THE SAME TRAIN PROVIDED THAT SUCH TRACK SECTIONS ARE UNOCCUPIED.
References Cited (Backward Citations)
US1830820A
Cited
US2194352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |