US3438809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for masking articles with wax by capillary action
Assignee: Boeing North American Inc
•
Filing: 1965-04-01
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Granted: 1969-04-15
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Kaveggia
- 👤 Carl J Rossi
- 👤 Leland L Peart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:09
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/02; C03; C03C; C03C15/00; Y; Y10; Y10S; Y10S438/00; Y10S438/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US154032A
Cited
US3226255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |