US3285515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable marine railway
Assignee: Individual
•
Filing: 1963-11-18
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Granted: 1966-11-15
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Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 John W Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:35
CPC Classifications
B; B63; B63C; B63C3/00; B63C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A MARINE RAILWAY, A PAIR OF SUBSTANTIALLY PARALLEL, SECTIONAL RAILS AND A PLURALITY OF PRECAST CONCRETE CROSSTIES, EACH SECTIONAL RAIL COMPRISING A PLURALITY OF SUCCESSIVELY INTERCONNECTED PRECAST CONCRETE RAIL SECTIONS, WITH AT LEAST SOME OF THE RAIL SECTIONS INCLUDING SHELF MEANS AT ONE END THEREOF, SAID SHELF MEANS EXTENDING BELOW AND SUPPORTING THE ADJACENT END PORTION OF THE NEXT RAIL SECTION, EACH SUCH SHELF MEANS ALSO EXTENDING BELOW AND SUPPORTING AN END PORTION OF A CROSSTIE, EACH SUCH SHELF MEANS HAVING FIRST AND SECOND DOWELS EMBEDDED THEREIN, WITH THE FIRST DOWEL EXTENDING UPWARDLY INTO AN OPENING IN THE RAIL SECTION END PORTION SUPPORTED BY THE SHELF MEANS, AND WITH THE SECOND DOWEL EXTENDING UPWARDLY INTO AN OPENING IN THE CROSSTIE END PORTION SUPPORTED BY SUCH SHELF MEANS.
Claim 2
Dependent Claim
128 words
IN A MARINE RAILWAY, A PAIR OF SUBSTANTIALLY PARALLEL, SECTIONAL RAILS AND A PLURALITY OF PRECAST CONCRETE CROSSTIES, EACH SECTIONAL RAIL COMPRISING A PLURALITY OF SUCCESSIVELY INTERCONNECTED PRECAST CONCRETE RAIL SECTIONS, WITH AT LEAST SOME OF THE RAIL SECTIONS INCLUDING SHELF MEANS AT ONE END THEREOF, SAID SHELF MEANS EXTENDING BELOW AND SUPPORTING THE ADJACENT END PORTION OF THE NEXT RAIL SECTION, EACH SUCH SHELF MEANS ALSO EXTENDING BELOW AND SUPPORTING AN END PORTION OF A CROSSTIE, EACH SUCH SHELF MEANS HAVING FIRST AND SECOND DOWELS EMBEDDED THEREIN, WITH THE FIRST DOWEL EXTENDING UPWARDLY INTO AN OPENING IN THE RAIL SECTION END PORTION SUPPORTED BY THE SHELF MEANS, AND WITH THE SECOND DOWEL EXTENDING UPWARDLY INTO AN OPENING IN THE CROSSTIE END PORTION SUPPORTED BY SUCH SHELF MEANS.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |