US2909399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End wall table
Assignee: Individual
•
Filing: 1956-05-07
•
Granted: 1959-10-20
•
Expires: 1976-05-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Wasson
- 👤 John E Dunn
- 👤 Lonnie M Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:21
CPC Classifications
A; A47; A47B; A47B5/00; A47B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US370331A
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US1158953A
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US1655516A
Cited
GB286458A
Cited
US1834792A
Cited
US2039124A
Cited
US2131675A
Cited
US2203394A
Cited
US2650146A
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US2777742A
Cited
US2730418A
Cited
US2764460A
Cited
US2811400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |