US2918992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building structure
Assignee: Individual
•
Filing: 1956-03-26
•
Granted: 1959-12-29
•
Expires: 1976-03-26
Abstract
No abstract record available.
Inventors
- 👤 John Z Gelsavage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/32; E04B1/3211; E04B2001/327; E04B2001/3276; E04B2001/3288; E04B2001/3294; Y; Y10; Y10S; Y10S52/00; Y10S52/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US185889A
Cited
FR405398A
Cited
US1977391A
Cited
US2405643A
Cited
US2394702A
Cited
US2549189A
Cited
US2505343A
Cited
US2715953A
Cited
US2682235A
Cited
NL123866C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |