Patent US2532364A successfully refreshed from Google Patents.
US2532364A
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Machine for enabling systematized customer notification service
Assignee: PennzEnergy Co
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Filing: 1947-10-01
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Granted: 1950-12-05
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Expires: 1967-10-01
Abstract
No abstract record available.
Inventors
- 👤 Evert F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:28
CPC Classifications
G; G06; G06C; G06C27/00; Y; Y10; Y10S; Y10S221/00; Y10S221/01
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) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |