US3493080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable tree seat
Assignee: HARRY C EHLERT
•
Filing: 1968-03-20
•
Granted: 1970-02-03
•
Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Harry C Ehlert
- 👤 Tommy L Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
A; A01; A01M; A01M31/00; A01M31/02; A45; A45F; A45F3/00; A45F3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206574A
Cited
US1993320A
Cited
US2074586A
Cited
US3065821A
Cited
US3358789A
Cited
US3396818A
Cited
US3392802A
Cited
US3368725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |