US3455538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating means
Assignee: Chesapeake Corp of Virginia
•
Filing: 1965-04-30
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Granted: 1969-07-15
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Henry Vranian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:16
CPC Classifications
B; B66; B66F; B66F19/00; E; E04; E04G; E04G23/00; E04G23/06; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1082; Y10T292/175; Y10T292/18
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |