US2730256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor truck
Assignee: NL Industries Inc
•
Filing: 1953-06-30
•
Granted: 1956-01-10
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Louden
- 👤 William K Holleron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:10
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1607554A
Cited
US2119071A
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US2479899A
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US2589968A
Cited
US2585169A
Cited
US2481860A
Cited
US2613004A
Cited
US2545766A
Cited
US2633255A
Cited
US2676721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |