US2640358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampler
Assignee: Sunoco Inc
•
Filing: 1947-12-11
•
Granted: 1953-06-02
•
Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 William L Mcclure
- 👤 Robert N Pim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2917; Y10T137/2924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE80832C
Cited
US712A
Cited
US698993A
Cited
US1932582A
Cited
US1891592A
Cited
US1970880A
Cited
US2213521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |