US2917819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for repairing glass coated apparatus
Assignee: Pfaudler Permutit Inc
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Filing: 1956-04-09
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Granted: 1959-12-22
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Expires: 1976-04-09
Abstract
No abstract record available.
Inventors
- 👤 Orson J Britton
- 👤 Ernest F Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:34
CPC Classifications
B; B23; B23P; B23P6/00; B23P6/04; F; F16; F16B; F16B33/00; F16B33/004; Y; Y10; Y10S; Y10S411/00; Y10S411/915; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T29/49744; Y10T29/49826; Y10T29/49885
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |