US3534490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Section frame
Assignee: DONALD P HERBERT
•
Filing: 1968-07-09
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Granted: 1970-10-20
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Expires: 1988-07-09
Abstract
No abstract record available.
Inventors
- 👤 Donald P Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:38
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/06; A47G1/0605; F; F16; F16B; F16B2200/00; F16B2200/65
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |