US3540209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horological time display
Assignee: Timex Group USA Inc
•
Filing: 1969-06-12
•
Granted: 1970-11-17
•
Expires: 1989-06-12
Abstract
No abstract record available.
Inventors
- 👤 Norman C Zatsky
- 👤 Eugene R Keeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/05; C; C09; C09K; C09K19/00; G02F1/13; G04; G04G; G04G9/00; G04G9/02; G04G9/06; G04G9/062; G02F1/055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3440620A
Cited
US3485033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |