US2962979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of correcting existing track and alignements and means for practicing it
Assignee: Individual
•
Filing: 1959-05-21
•
Granted: 1960-12-06
•
Expires: 1979-05-21
Abstract
No abstract record available.
Inventors
- 👤 William C Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:17
CPC Classifications
E; E01; E01B; E01B35/00; E01B2203/00; E01B2203/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734463A
Cited
US785252A
Cited
US2412463A
Cited
US2725016A
Cited
US2693769A
Cited
GB753519A
Cited
US2861521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |