US3000498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Post Office
•
Filing: 1958-05-19
•
Granted: 1961-09-19
•
Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Copping Geoffrey Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/081; B; B07; B07C; B07C3/00; B07C3/10; B07C3/12; Y; Y10; Y10S; Y10S209/00; Y10S209/90
Claims Analysis
Total Claims: 0
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US2697514A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |