US3515798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic cover and removable cone assembly
Assignee: 3M Co
•
Filing: 1968-12-06
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Granted: 1970-06-02
•
Expires: 1988-12-06
Abstract
No abstract record available.
Inventors
- 👤 James A Sievert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/182; H02G15/1826; H02G15/1833; F; F16; F16B; F16B4/00; F16B4/004; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3929; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT189460B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |