US3449176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of solid substrates
Assignee: 3M Co
•
Filing: 1966-01-14
•
Granted: 1969-06-10
•
Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Nicholas P Klass
- 👤 Ralph W Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/78; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007069A
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US1247668A
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US2514149A
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US2992131A
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US3012904A
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US2976169A
Cited
US2997405A
Cited
US3033703A
Cited
US2958593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |