Patent US3389411A successfully refreshed from Google Patents.
US3389411A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-04-07
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Granted: 1968-06-25
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Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 William M Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:34
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/02; A47C21/022; A47G; A47G9/00; A47G9/02; A47G9/0238; A47G9/0253; Y; Y10; Y10S; Y10S5/00; Y10S5/924; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/239
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |