Patent US3106898A successfully refreshed from Google Patents.
US3106898A
Expired / Lapsed
US
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Monorail track and switch
Assignee: Lockheed Martin Corp
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Filing: 1960-11-14
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Granted: 1963-10-15
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Prosin Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:42
CPC Classifications
E; E01; E01B; E01B25/00; E01B25/08; E01B25/12
Claims Analysis
Total Claims: 0
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |