US3474898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package of reactable components
Assignee: Wyeth Holdings LLC
•
Filing: 1967-05-15
•
Granted: 1969-10-28
•
Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 William Herbert Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:41
CPC Classifications
E; E21; E21D; E21D20/00; E21D20/02; E21D20/025; E21D20/026; F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3036894A
Cited
US3028000A
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US3082867A
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US3381818A
Cited
US3136468A
Cited
US3266625A
Cited
US3302410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |