US3400890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragrance releasing device
Assignee: National Patent Development Corp
•
Filing: 1966-12-07
•
Granted: 1968-09-10
•
Expires: 1986-12-07
Abstract
No abstract record available.
Inventors
- 👤 Francis E Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:21
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61L9/127; A41; A41G; A41G1/00; A41G1/001; A41G1/006; Y; Y10; Y10S; Y10S261/00; Y10S261/88; Y10S428/00; Y10S428/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2661238A
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US2740662A
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US2976576A
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US2988284A
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US3220960A
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US3310472A
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US3270525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |