US2916995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamping plug
Assignee: EIDP Inc
•
Filing: 1956-05-17
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Granted: 1959-12-15
•
Expires: 1976-05-17
Abstract
No abstract record available.
Inventors
- 👤 John J Douglass
- 👤 Chester M Pomeroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:17
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/18
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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |