Patent US2877877A successfully refreshed from Google Patents.
US2877877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel wall construction
Assignee: Individual
•
Filing: 1957-09-23
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Granted: 1959-03-17
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Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh N Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:32
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0814; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44009
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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |