Patent US3319581A successfully refreshed from Google Patents.
US3319581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monorail
Assignee: Individual
•
Filing: 1964-11-25
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Granted: 1967-05-16
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Fred L Churchman
- 👤 James H Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:20
CPC Classifications
A; A63; A63G; A63G21/00; A63G21/04; B; B61; B61B; B61B13/00; B61B13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
MONORAIL APPARATUS, COMPRISING TRACK MEANS HAVING A UNIFORM CIRCULAR EXTERIOR CROSS-SECTIONAL CONFIGURATION, A SINGLE GUIDE RAIL MEANS EXTENDING ALONG A SIDE OF THE EXTERIOR OF SAID TRACK MEANS, MONORAIL VEHICLE MEANS COMPRISING ARCUATE BODY MEANS SPACEDLY SURROUNDING SAID TRACK MEANS FROM ONE SIDE OF SAID GUIDE RAIL MEANS AROUND SAID TRACK MEANS TO THE OTHER SIDE OF SAID GUIDE MEANS WHEREBY SAID GUIDE RAIL MEANS IS DISPOSED IN A GAP ALONG THE LOWER SIDE OF SAID ARCUATE BODY MEANS, LATERALLY EXTENDING FRAME MEANS DEPENDING FROM EACH SIDE OF SAID BODY MEANS EACH SPACED FROM THE GAP OF SAID BODY MEANS IN WHICH SAID GUIDE RAIL MEANS IS DISPOSED, COMPARTMENT MEANS CARRIED BY EACH SAID FRAME MEANS, SAID FRAME MEANS AND COMPARTMENT MEANS BEING BALANCED AT OPPOSITE SIDES OF SAID ARCUATE BODY MEANS, PLURAL WHEEL MEANS CARRIED
Claim 2
Dependent Claim
136 words
MONORAIL APPARATUS, COMPRISING TRACK MEANS HAVING A UNIFORM CIRCULAR EXTERIOR CROSS-SECTIONAL CONFIGURATION, A SINGLE GUIDE RAIL MEANS EXTENDING ALONG A SIDE OF THE EXTERIOR OF SAID TRACK MEANS, MONORAIL VEHICLE MEANS COMPRISING ARCUATE BODY MEANS SPACEDLY SURROUNDING SAID TRACK MEANS FROM ONE SIDE OF SAID GUIDE RAIL MEANS AROUND SAID TRACK MEANS TO THE OTHER SIDE OF SAID GUIDE MEANS WHEREBY SAID GUIDE RAIL MEANS IS DISPOSED IN A GAP ALONG THE LOWER SIDE OF SAID ARCUATE BODY MEANS, LATERALLY EXTENDING FRAME MEANS DEPENDING FROM EACH SIDE OF SAID BODY MEANS EACH SPACED FROM THE GAP OF SAID BODY MEANS IN WHICH SAID GUIDE RAIL MEANS IS DISPOSED, COMPARTMENT MEANS CARRIED BY EACH SAID FRAME MEANS, SAID FRAME MEANS AND COMPARTMENT MEANS BEING BALANCED AT OPPOSITE SIDES OF SAID ARCUATE BODY MEANS, PLURAL WHEEL MEANS CARRIED
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |